Questions regarding pH dynamics and adjustments. Answers from General Hydroponics

By Hydro Green Grow Team
on January 08, 2018

Questions regarding pH dynamics and adjustments. Answers from General Hydroponics

Questions regarding pH dynamics and adjustments.

What is pH?
pH is the measure of acidity/alkalinity of a solution. 

Can you explain this in a little more detail?
pH is a measure of the hydronium ion H3O+. It is based on a logarithmic scale from 0 to 14. "Pure" water has a pH of 7.0. If the pH is less than 7, the solution is acid. If the pH is greater than 7 it is alkaline. Because the scale is logarithmic and not linear, a pH of 6 indicates ten times more H protons than a pH of 7, and a pH of 5 indicates 10 times more protons than a pH of 6. 

What pH is best for growing plants hydroponically?
The ideal pH range for most hydroponic crops is between 5.5 and 6.5. 

How does pH level affect plant growth?
pH is important because it affects availability and absorption of several of the 16 atomic elements needed for plant growth. Maximum absorption of these elements is found at pH readings 5.5 to 6.5. When pH falls below this range many of the macro elements (N, P, K) have less availability, and absorption of the micro nutrients can reach toxic levels. 

How do you change the pH?
pH is adjusted by using an acid to lower it or a base to raise it. General Hydroponics' pH Down and pH Up are designed for this purpose. Many acids and bases are extremely corrosive and dangerous, so care should be used. 

How often should I check my pH level?
When first starting out it is a good idea to measure the pH of your water every day, until you get a feel for your system. Measure your water and then add your nutrients. Within an hour check the pH and adjust accordingly. Repeat this process until pH stabilizes. The liquid nutrient Flora Series has special pH buffers to help maintain a desirable pH. It is a good idea to note how much water, nutrients and pH modifiers are needed to obtain the desired values. After several "start- ups" you can generally get a feel for how much acid or base to use for your situation. Frequently pH stays within a desirable range for a considerable time, and then rapidly rises or falls to an extreme. This is usually an indication of the need to do a nutrient change. If you are using hard water, pH has the tendency to climb above 7.5. Sometimes this can be neutralized with acid, though one might consider diluting with filtered water, or adding a reverse osmosis unit in an extreme case. 

How much pH Up/Down is needed per gallon?
Start out with one milliliter per gallon. Wait 15 To 30 minutes, and test your water again. Frequently you will only need 1 to 2 ml of pH Up/Down per gallon of water. You may need additional pH Up/Down if you have hard water. Flora Series is pH buffered to facilitate keeping the pH in a favorable range. 

The pH in my system drops below 4 every few days after cleaning and refilling. How do I increase the pH and stabilize it?
The easiest way is to continue adding pH Up. This is generally fine because the additional elements that are added are potassium ions. Potassium is frequently the highest element in hydroponic nutrient solutions. Sometimes pH crashes because of the presence of a large amount of microbial activity in the nutrient solution. This is usually a result of poor maintenance of the system due to infrequent nutrient changes or other stresses. The best way to avoid this scenario is to keep a clean system with adequate nutrition.

Great Read on Beginning Hydroponics from Advanced Nutrients

By Hydro Green Grow Team
on January 05, 2018

Great Read on Beginning Hydroponics from Advanced Nutrients


How To Start Growing With Hydroponics For Beginners

If you’d like to know how to build your own hydroponic garden and get started with indoor growing then this article will show you how!

Think of this as the “ultimate” hydroponics guide for beginners because we’re not going to bog you down with too many details or confuse you with a ton of jargon …

On this page you’ll just find the simple, 30,000ft view of how it all works and how you can get started as quickly as possible growing your own hydroponic plants!


What Is Hydroponics?

Before we get started, let’s actually define what we are talking about here …

What is hydroponic farming anyways?

Wikipedia actually has the perfect definition because it’s so simple:

“Hydroponics is a subset of hydroculture and is a method of growing plants using mineral nutrient solutions, in water, without soil. Terrestrial plants may be grown with their roots in the mineral solution only, or in an inert medium, such as perlite or gravel. The nutrients in hydroponics can be from fish waste, normal nutrients, or duck manure.”

So basically, we’re looking to grow plants without actually having to plant them in the ground. That means we can grow them indoors if we choose!

Eljay from the YouTube series “How To Hydro” has a great explanation for why we want to do indoor gardening. He says, “Indoor growing is all about creating perfect Sundays, every day, for all your plants”:



Why Would You Want To Start Growing With Hydroponics?


Hydroponics vs soil growing comparison graph
A hydroponics vs. soil comparison for Holland Hybrid tomatoes showing taller plants from hydroponics.
There are many reasons why people want to get into hydro plant growing, but we’ll cover some of the most important and popular reasons here…


  • Faster Growth! Plants grow faster with hydroponics because it’s a more efficient way to grow them. For example, most experts agree that plants will grow at least 20% faster with hydroponics vs soil. That’s a huge time saver!
  • Bigger Yields! Scientists have lots of theories as to why this is the case, but the fact of the matter is that experts also agree you can expect at least 20-25% more yields with hydro as compared to growing in soil. That truly adds up!
  • No soil! This can be a benefit because you may live in an area where there is no good soil to grow plants outside. Or perhaps you don’t have any outside area because you live in an urban area. With a hydro grow you can still grow plants, even if you don’t have soil!
  • Space Saving! Because your plants don’t need to spread their roots out into lots of soil to get the nutrients they need (because they’re surrounded by oxygenated nutrient-rich water solution)–you can pack more plants closer together. This saves a TON of space and one of the amazing features about indoor grows is how many plants can be put together and grown in a small space. Again, this is perfect for urban dwellers who want to grow a lot of plants with little space.
  • Water Saving! Because you are using reservoirs that are covered (to prevent evaporation) and no water seeps out of the bottom (because they’re sealed)–the plants take up the exact amount of water they need at any one time and the rest remains in the reservoir to be used later. Compare this to soil gardening where you have to water your plants daily and most of the water is wasted. It’s easy to see how the same amount of water used to water a plant in soil for a day can water a plant in a simple hydroponic system for multiple days or even a week at a time! In short, you can save about 90% of your water by switching to hydro growing.
  • No Weeds! One of the most tedious, time-consuming and frustrating activities for many gardeners is cleaning their gardens and pulling out weeds. With hydroponics growing there are no weeds to pull!
  • Less Diseases & Pests! Because you’re not using soil, you also get rid of a lot of soil-borne diseases and pests that can normally wreak havoc on your plants and make gardening a pain.


Hydroponics vs soil grown plants comparison graph
A graph showing bigger circumference (size) plants from hydroponics. From A hydroponics vs. soil comparison for Holland Hybrid tomatoes.


Why NOW Is A Great Time To Start Your Own Hydro Farm

The truth is that Hydroponics gardening has never been more popular than right now!

In fact, you can get started with your own indoor garden hydro setup by buying many of your supplies right off online sites like


The Different Types of Hydroponics and How They Are Different

When it comes to hydroponics systems, there are six main types to choose from. These are:

  1. Deep Water Culture (DWC)
  2. Ebb and Flow (Flood and Drain)
  3. Wicking
  4. Drip
  5. Aeroponic
  6. Nutrient Film Technique (NFT)

Now, there are actually multiple variations of each of these different types of hydro systems, but these are the “high level” overviews and categories of basic designs.

Here’s the important thing to remember:

ALL these systems are hydroponics because they don’t use soil, and because you’re feeding the plants a nutrient-rich water solution instead of planting them in soil. The only difference between each type is HOW they deliver the water, oxygen and nutrients that you’re feeding the plants.


The EASIEST Type of Hydroponics System To Setup

 Without a doubt, most hydroponics experts would agree that a Deep Water Culture (DWC) hydroponics system is the easiest type of hydro system to use for indoor growing because it requires the LEAST amount of materials, supplies, and know-how to get started:


Hydroponics for beginners – DWC hydro system explained
The Deep Water Culture (DWC) hydro system is the easiest for beginners to use.
In a DWC hydro system, you simply fill up a reservoir with your nutrient solution. You then suspend your plant’s roots in that solution so they receive the steady, continuous supply of water, oxygen, and nutrients.


Then a continuous oxygen supply is added to the water. The most common way that growers oxygenate the nutrient solution reservoir is with an air pump and airstone to pump bubbles into it. This keeps your plant’s roots from “drowning” which — while it sounds weird — is a real concern because your plants will suck the oxygen they need out of the water.

Using the DWC system, you’ll find it’s extremely simple to setup (once you understand how it all works) and extremely low-maintenance (again, once you understand how it works) making it perfect for hydroponics beginners.


How To Setup a SuperSimple Deep Water Culture Hydroponics System For About $25 and 1 Hour of Work!


Beginner hydroponics guide – setting up your own DWC hydroponics system
Diagram showing how a 5-gallon bucket Deep Water Culture Hydroponics System is setup.
At this point, you may be wondering how to get starting building your own Deep Water Culture hydroponics system.


The good news is it’s easier than you think!

Probably the most simple way to get started is to use a traditional 5 gallon bucket for just one plant. From the picture diagram above, you can see this setup is extremely easy.


What About Lighting For Your Plants?

 The fact is that your plants need light to grow.

The simple answer is that if you can locate your hydroponics system where your plants can get at least 6 hours of sunlight per day, that is the best. Sunlight provides all the lighting that your plants need to grow correctly.

If you can’t locate your plants in direct sunlight, then you will have to provide artificial lighting using your own indoor grow lights. The truth is that a complete discussion of the proper indoor grow lights is beyond the scope of this article, but you will need to select the proper lighting system with the correct spectrum of light, intensity, power and that covers enough “footprint” to work with your garden. For more information on choosing the right hydroponic grow lights, click here.

For a simple, 5-gallon bucket DWC hydro system like we’re encouraging on this page — you should try to just place your 5-gallon bucket system in direct sunlight.


Big Tip: Start Your Plants From Clones


Beginner hydroponics guide – clones vs seeds
A plantlet seedling.
If you’re just getting started growing hydroponically, you want to make it easier on yourself. The best way to do that is to eliminate all the things that might go wrong.


That’s why we recommend starting from a live plant instead of trying to use seeds for your first grow. This is called “cloning” and more tips on how to do this can be found here.

To use herbs as an example, simply acquire an herb seedling and gently remove it from the soil and potting container it came in and wash away all the dirt from the roots of the plant. You don’t want to contaminate your water.

Once you have rinsed the plant’s roots with water, then you can simply add it into your net pot in the lid of your bucket. If the seedling already has roots that you can pull through the net pot into the water, that’s even better and going to make your job easier. Then you simply cover the root system with your growing media and let the system do the rest of the work!


How To Make Sure Your Water Doesn’t KILL Your Plants!

 If possible, you want to use Reverse Osmosis (RO) water for your nutrient solution because if you don’t you could seriously harm your plants. See our article “Why all hydroponics growers should use reverse osmosis water systems” for complete details.

Also, if you are using RO water and especially if you are using tap water, you need to know that pH is an important factor. Most tap water is in the 7.0-8.0 pH range. The recommended herbs in this guide thrive in water that’s a little lower pH than this, around the “sweet spot” of 5.5-6.3


Example of commonly available pH testing kit made for pools.


How do you know? You’ll need to buy a pH testing kit to test your water. And if your pH is off then you will need to add pH-Up or pH-Downto adjust your pH levels.

Why is this so important? Because when the pH of your hydroponic system gets out of balance—which can happen quickly if some kind of stabilizing agent or mechanism is not put in place—the ability of your plants to absorb macro, secondary, and micronutrients, as well as vitamins, carbohydrates, and other beneficial sources, is limited.

The truth is that dealing with pH issues can be a real hassle. That’s the bad news. The good news is that, if you use the right products, you can completely eliminate all your pH issues and you will never have to worry about this!


The Best Nutrients For Beginners Are From Advanced Nutrients

 The fact of the matter is that, no matter what you’re growing, the nutrients from Advanced Nutrients are the best nutrients for beginners (They’re also the best nutrients for professional growers too, but for different reasons that are beyond the scope of this article!).

How can we make such a bold statement?

Quite simply, it’s because all of Advanced Nutrients products are specifically designed for hydroponics growing. And they are the only nutrients to utilize scientific breakthroughs like pH Perfect Technology.

The fact is that Advanced Nutrients has spent many thousands of man-hours developing a technology that automatically balances your pH for you — putting it in the “sweet spot” and holds it there for weeks.

You can see more about pH Perfect Technology when you click here but the point is that for a beginner, again, the less variables the better. And utilizing the best nutrients in the world will only make your job easier.

Specifically, for the types of herbs we’re recommending on this page for beginners, we recommend using pH Perfect Sensi Grow A & Bbecause you don’t actually want the herbs to bloom (because that could make them bitter).


Follow This Simple Feed Chart Designed by our Research Team
(Grow Phase)

Conversions: 1 Teaspoon = 5mL | 1 Tablespoon = 15 mL | 1 Ounce = 30mL | 1 Cup = 240 mL
Cutting and Seedlings: 1 ml/L | Small Plants: 2 ml/L | Mature Plants: 4 ml/L


Did You Enjoy This Article? Learn Something Cool?

 If you enjoyed this article, then it would be great if you shared it with other growers who might benefit! Simply click any one of the social media buttons below to share it now!

And stay tuned because we’re going to be releasing many, many more of these helpful articles in the future. If there’s anything you’d like to see, we would love to hear your feedback!

Guidance on number of lights on a single circuit from Black Dog LED

By Hydro Green Grow Team
on January 04, 2018

Guidance on number of lights on a single circuit from Black Dog LED

This is a great primer on understanding how many lights you can put on a circuit.

Read more »

Our first Vertical Hydroponic Build

By Hydro Green Grow Team
on November 06, 2017

Vertical Genovese  Basil grow.

Read more »

One thing leads to another, and Naperville man discovers hydroponics

By Hydro Green Grow Team
on September 28, 2017

One thing leads to another, and Naperville man discovers hydroponics

We though this story below about discovering hydroponics by accident was interesting and inspiring.  It goes to show you that it is never too late to begin learning about hydroponics allowing you to grow your own fresh fruits and vegetables.

 Naperville Sun

"I started looking into hydroponics by accident," said Naperville resident Tom Haworth, who is a programmer for an area company. "I was looking at designs for home automation because I wanted to set that up in our house, but then I saw this hydroponic system another guy had set up."

As someone who is intrigued by technology in all forms, Haworth decided that hydroponic gardening was something he needed to try. "I went looking for supplies and found that many home brewing supply stores also carried hydroponic supplies because they share some of the same things," he said.

Haworth found hydroponics to be intriguing. Hydroponics is a system where plants are grown in nutrient rich water that is highly oxygenated, he said. No soil is needed. The plants are held up by clay pebbles that can be reused and roots of the plant are constantly bathed in the nutrient-rich water. No pesticides are needed and since the system is closed, there is no release of nutrition pollution into the environment. Less water is used in a hydroponic system than with traditional gardening because the water is reused.

Haworth began building hydroponic systems in 2004. His first design used two-liter soda pop bottles cut in half to hold plants in holes cut into a length of PVC pipe.

"It was an ebb and flow system," he said, referring to a setup where the nutrient solution is stored in the reservoir and is pumped into the pipe to reach plant roots. The pump is controlled by a timer to turn on several times a day to keep the roots hydrated. When the pump turns off, any leftover water flows back down into the reservoir to be used again.

The good news is that his plants grew quickly and he didn't have to worry about insects that are usually present in the soil. The bad news is that a family of raccoons found his plants to be inviting and tore up several. Undaunted, he raised the system up on legs to make it less accessible to area wildlife.

Each year, Haworth has tried new techniques and tweaked his designs. He ran into some challenges, like the time the fast-developing roots clogged the pipe so that water couldn't get through. He also found that if the concentration of nutrients was too high, tomatoes would grow faster than the skin and split. And although ground insects were not an issue, his squash still got attacked by beetles.

On the positive side, he has been impressed with the yield, quality and speed of his hydroponic crops. "These tomatoes are very good. They are red all of the way through — no hard white sections," he said, holding one of the brilliant red tomatoes.

One year Haworth bought a commercially made tower aeroponic system. He still uses the tower, which allows him to grow 20 different plants right next to each other in a circle that is less than three feet in diameter. Instead of the water flowing by the plants, nutrient-rich water is sprayed on the roots at intervals throughout the day.

"I can literally put a seed in one of these cups and in 30 days have a tomato," Haworth said. "I usually start with small plants in the tower but within six weeks, I can't see the tower because they have grown so large."

Over the years, Haworth has grown tomatoes, cucumbers, rhubarb, squash and zucchini in water. One year he fashioned a square tower for cucumbers that allowed the plants to grow upward. He had a total of 12 plants growing in about a three-foot-wide space.

Haworth and his wife Linda enjoy that availability of quality produce growing right outside their back door. "The next thing I would like to try is a system that has a floating raft," said Haworth, who has a journal with photos and information chronicling each year's designs. "And maybe a greenhouse so it could be year around."

Black Dog LED - Phytomax 2 - more power, more growth!

By Hydro Green Grow Team
on May 02, 2017

Black Dog LED - Phytomax 2 - more power, more growth!

Black Dog LED Phytomax-2 Overview

Are you looking for a new lighting system for your grow house or hydroponics facility? Are you in the market for something new, that maybe can help you overcome some of the issues associated with grow lights in the past? You’re in luck!

Black Dog LED has made an exciting announcement in the new year with the reveal of their new LED grow light series, PhytoMAX- 2. With patent pending, Black Dog LED has combined more than six years of experience with LED grow lights to deliver the highest PAR levels and efficiency into this new series. Over the years, Black Dog LED has witnessed many engineering advancements to the field and has now found a way to put all of that new found knowledge to use maximizing growth potential.

All lights in the PhytoMAX- 2 series are 5 watt LEDs, built at the highest available quality and efficiency, selected from industry leaders like Cree, Osram, and more. The bulbs are designed to be easily cleanable and durable, while still maximizing efficiency. The bulbs are placed in the lamps in an even edge- to- edge coverage design to help control leaf burn and hot spots.

All the lamps are built in the United States- Colorado, to be exact, so you can rest assured that the products have been tested and vetted locally for their most ideal performance.

 These lamps are proven to be the most efficient and effective grow lamps on the market, so you can trust that they will work for your hydroponic or grow house needs. There is also a water- flush housing that can be installed flush to the ceiling to keep bulbs from sprayer or humidity systems from reaching the bulbs, which can cause cracks or shortages.

Many grow lights can stall plant growth. Because of the design of the PhytoMAX- 2, there is a common- ground ideal spectrum for both vegetation and flowering stages. This eliminated the need to purchase separate lights and helps keep everything growing to reach its fullest potential on time.

 Black Dog’s UV LEDs have been laboratory- proven to produce the highest potency and active compounds for plant growth including THC, CBD, terpenes, antioxidants, vitamins, and flavonoids. The photosynthic efficiency is increased by the IR light, as well, helping plants to mature faster and stay healthier throughout their life.

 The best part about these lights is that they do not burn hot. They have the best active- heat management team in the LED industry and are committed to maximizing the life of their bulbs as well as the efficiency of their products in the grow house industry.

 Black Dog is a leader in their field, offering a five year warranty on all their products and a 90-day no- hassle return policy. This means that, if you don’t like the lamps for whatever reason, you can return them to manufacturer and be refunded without any questions asked.

                Go ahead and try out the PhytoMAX- 2 series today. What have you got to lose?

NextLight LED - the Next generation of Grow Lights

By Hydro Green Grow Team
on March 01, 2017

NextLight LED - the Next generation of Grow Lights

NextLight LED - the Next generation of Grow Lights

  1. Introduction to NextLight LED

Are you thinking about an indoor vegetation growth project? Perhaps you are looking at growing hydroponic fruits or vegetables, starting an indoor greenhouse, or maybe you are even trying to cash in on the recent legalization of marijuana. Odds are, you may be a bit overwhelmed when it comes to purchasing the correct light for your facility.

With many LED grow lights on the market, it’s easy to get lost in the technical mumbo- jumbo of the business and lose sight of what, exactly, you’re shopping for. Thankfully, a company called NextLight has just the product you’re looking for- and all of the answers as to why their lights are the best ones out there!

 NextLight is committed to providing the most efficient LED product line on the current market with a focus on consumer safety. In fact, they are one of few LED grow light manufacturers on the market with the Underwriters Laboratories Inc. seal of approval. Underwriters Laboratories, or UL as it is commonly referred, is an independent, non-profit organization that develops testing standards and puts these standards to use testing products for safety, ultimately rejecting or certifying them. UL has developed over 800 different safety standards that each product must meet before obtaining a seal, so when you buy from NextLight, you know that they are one of the safest on the market. If you fear the fire hazard of an LED grow light, you aren’t alone. Fires associated with grow lamps can and do cause devastating damage to plants, buildings, and have caused injuries to the people who use them. Looking for the UL seal of approval can help set your mind at ease, no matter which lamp you decide to buy.

When you shop efficiency, you are shopping for savings. While you will pay more retail price for an energy efficient LED, you will more than make up the money later on your monthly utility bill and in bulb replacements. NextLight commercial series features have a guaranteed 100,000 hour life rating and are extremely energy efficient. This means that you NEVER replace bulbs and they won’t pull electricity as dramatically as other models that are out there, so your utility bill will reflect your savings.

The NextLight’s latest moden, the NextLight Mega, is unique because it runs on white light. In the past, LED manufacturers wrongly believed that purple LED light was most efficient for use in grow lights. NextLight has proven with their NextLight Mega model that white light can, in fact, work better.

The light spectrum on this light has been specially formulated to provide a believable alternative to natural sunlight, helping plants grow faster and healthier without the negative high energy requirements and heat that have been associated with grow lamps of the past.

Clearly, the NextLight line of LED products is one of the best out there on today’s market, and the NextLight Mega is a strong competitor in commercial grow house furnishings. Not to be overlooked, the company has made a strong commitment to consumer satisfaction. Give them a look!


Grow With Hydroponics and Hydrogreengrow

By Hydro Green Grow Team
on January 18, 2017

Grow With Hydroponics and Hydrogreengrow

Why Should You Grow with Hydroponics?

A hydroponic growing system offers plants an artificially controlled environment to grow in- there’s no soil, therefore there are serious advantages to it. Plants grown with hydroponics grow quickly, and abundantly, and the system makes efficient use of resources. Hydroponic systems can be set up to work anywhere and anytime without worrying about the weather or other soil limiting factors.


There’s a level of control with hydroponics growing that isn’t present with soil growth. The grower controls the exact amount of composition of nutrients which the plant will receive. With soil growth is difficult to regulate, and the nutrients in the soil can be difficult to determine. Additionally, the grower can protect the plants from exposure to pollutants and pests, while controlling the growing environments pH level. Water is also used more effectively, with irrigation water recyclable.

Plant Growth

Plants that are grown hydroponically grow faster than those grown in soil, this is because nutrients and oxygen are directly delivered to the roots of the plants, and intensively. This fast growth shortens harvest cycles, allowing growers to fit more growth cycles in. Hydroponic plants also tend to have higher yields, as the plants don’t need to work as hard to get nutrients. This allows them to use their energy for fruiting.


Hydroponic systems don’t rely on external conditions, so they can be set up anywhere. Wait for it… even in external environments that are totally inhospitable to plant life. They also make more efficient use of the available space, as compared to soil growing. Hydroponics growing is ideal for urban environments where space is at a premium, and soil areas are limited. In areas where lighting is problematic, artificial light can be used. Hydroponics makes it possible to grow your own food or plants regardless of the soil quality and the environment that you live in.


Hydroponic systems can typically cost more to start then a soil setup, this is the one disadvantage, as compared to soil growing. The initial cost required to set up hydroponics systems is higher than setting up a soil growth operation of comparable size. It’s also labor intensive. The ongoing costs are also higher than soil growing, however, the cost is offset by the efficiency. The system efficiently uses the nutrients you provide, as well as the water. You are left with bigger and better yields, increased harvests due to shorter growth cycles, and you don’t need to worry about pesticides and soil content. Your hydroponic system will also be able to be used year after year for grow after grow without having to worry about crop rotation of nutrient depletion in the soil.

Necessary Components

There are a few things that you must have to get started growing hydroponically. You will obviously need a hydroponics system of some sort- whether you opt for a basic set up and kit it out as required, or you go the whole hog and set yourself up with a grow cabinet. We have many different options here. If you opt for the latter, you will get everything you need in one package and within 90 minutes of receiving it, your operation can be up and running. With the former, you may need additional items. Depending on where your grow is located, you may need artificial lighting, air filters, a timer, rock wool block, coco coir, and hydroponic nutrients. As your plants grow taller and begin blooming, reassess their light. If you see shadows, then you’ll know some side lights may be beneficial to their growth.

At Hydro Green Grow, we have found that growing with hydroponics is easier then soil. You don’t have to have a green thumb to be successful. Check out our buying guide for more information about all the different types of hydroponic systems. As always, if you need more help, you can contact us and we will guide you in the right direction.

To your growing success :)

LED vs HPS Indoor Grow Lights for Hydroponics

By Hydro Green Grow Team
on January 09, 2017

LED vs HPS Indoor Grow Lights for Hydroponics

LED vs HPS Indoor Grow Lights for Hydroponics


Whether you’re an experienced indoor grower or are looking to set up a hydroponic grow room for the first time, you’re probably wondering if LED lighting is really better than HPS for hydroponics.  There was a time that HPS grow lights far outstripped their LED counterparts, but that’s no longer the case.  LED lighting technology has advance in leaps in bounds over the past few years, and some growers believe that pound-for-pound they’re the best way to grow indoors. 

HPS Grow Lights

HPS lighting is a well-established technology that used to be the only option if you wanted to grow indoors or off season, whether you were using hydroponics or not.  This means that HPS lights are generally less expensive, easier to find and are very dependable.  And since they’ve been in use for so long, there’s a wealth of data and advice available on how to best employ HPS lighting in a hydroponic garden.

However, HPS lights are not without their drawbacks.  First, they’re not very energy efficient.  HPS lights guzzle energy compared to LED’s, which can create unwanted attention for your indoor growing operation.  HPS lights also produce a great deal of heat, making temperature control in your grow room more difficult.  Plus, setting them up properly can be complicated and time consuming, a frustrating proposition when you’re ready to start growing indoors the moment your lights arrive at your door.

LED Grow Lights

Contemporary LED grow lights can rival the light production of HPS bulbs while only requiring half the wattage.  While LED lighting requires a larger initial investment, it provides growers significant savings on power bills, reducing the overall cost of an indoor growing endeavor.  They also last longer than HPS bulbs, providing a lifespan that’s five to ten time greater.  LED grow lights don’t run as hot as HPS lights, making it easier to control the temperature in your grow room.  This is particularly important when using hydroponics, as even slight temperature changes can affect the health of your plants.

LED lighting also offers greater adaptability, especially for smaller indoor growing setups.  HPS lights are a bit cumbersome and take up a great deal of space, in addition to being a pain to assemble.  On the other hand, LED lights are usually ready to use right out of the box, take up considerably less space than HPS lights, and can be placed closer to your plants, allowing you a smaller footprint.  You can also specifically tailor LED lights to suit your crop, focusing on the spectrums your plants need during their lifecycles.  LED lighting also promises a higher crop yield than HPS, between one and a half and three times greater in fact.  

So check out these LED lighting options for your indoor hydroponic growing operation.  They can save you time, money, and frustration.  Whether you’re a well-seasoned grower or new to the world of hydroponics, you’ll be glad you did.

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Buying Guide

Hydroponics Buying Guide   There are various options of type of hydroponic systems available- it’s all about choosing a system that matches your...

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From the Blog

Questions regarding pH dynamics and adjustments. Answers from General Hydroponics

Questions regarding pH dynamics and adjustments. Answers from General Hydroponics

January 08, 2018

Questions regarding pH dynamics and adjustments. What is pH?pH is the measure of acidity/alkalinity of a solution.  Can you explain...

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Great Read on Beginning Hydroponics from Advanced Nutrients

Great Read on Beginning Hydroponics from Advanced Nutrients

January 05, 2018

How To Start Growing With Hydroponics For Beginners If you’d like to know how to build your own hydroponic garden...

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