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Best Grow Tents

last updated Feb 20, 2019

If you have been having some problems with mother nature, the wildlife, or just can’t seem to grow any crops in your garden that you may want to look into and invest in a grow tent.

These tents are portable and reusable and are typically built with a reflective interior lining and a heavy-duty canvas and support structure to ensure your plants are protected and receive all the nutrients it needs to grow and be plentiful. They can grow your essential vegetables, such as peppers and cauliflower, and other types of plants. And, yes, for those who are wondering you could even grow cannabis inside of them.

This is the best product on our list that is currently in stock:

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Gorilla 4 by 4
98.7/100 our score
Materials
98
Durability
99
Size
99
Gorilla 4 by 4
Why is it better?

Designed with micro mesh pest control pre-filters

Offers 360-degree access

The metal poles can support up to 500 pounds

In a Hurry? Editors choice:
Gorilla 4 by 4
Test Winner: Gorilla 4 by 4
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Researched Sources
13
Researched Sources
Reviews Considered
2,098
Reviews Considered
Hours Researching
15
Hours Researching
Products Evaluated
14
Products Evaluated
Last Updated:
Sami Kritz
By Sami Kritz:

Grow anything indoors with one of these top-rated grow tents. From vegetables to cannabis, let your crops flourish. Our newest addition to this list is from Growtent Garden. This tent is available in 9 different sizes and features great ventilation windows. Learn more in the FAQ section and don't forget to vote and tell us which criterion is most important to you!

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Name
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#1
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
99.7
Materials
100 %
Durability
100 %
Size
99 %
Price Comparison Last Updated (21.11.19)
Amazon Link
$2,999.99
#2
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
98.7
Materials
98 %
Durability
99 %
Size
99 %
Price Comparison Last Updated (21.11.19)
Amazon Link
$237.00
#3
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
98.3
Materials
98 %
Durability
99 %
Size
98 %
Price Comparison Last Updated (21.11.19)
Amazon Link
$104.99
#4
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
98
Materials
98 %
Durability
98 %
Size
98 %
Price Comparison Last Updated (21.11.19)
Amazon Link
$163.46
#5
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
97
Materials
96 %
Durability
97 %
Size
98 %
Price Comparison Last Updated (21.11.19)
Amazon Link
$121.99
#6
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
96.3
Materials
96 %
Durability
96 %
Size
97 %
Price Comparison Last Updated (21.11.19)
Amazon Link
$105.99
#7
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
95.3
Materials
95 %
Durability
95 %
Size
96 %
Price Comparison Last Updated (21.11.19)
Amazon Link
$133.99
#8
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
94.3
Materials
94 %
Durability
94 %
Size
95 %
Price Comparison Last Updated (21.11.19)
Amazon Link
#9
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
93.3
Materials
93 %
Durability
92 %
Size
95 %
Price Comparison Last Updated (21.11.19)
Amazon Link
$60.00
#10
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
92.7
Materials
94 %
Durability
94 %
Size
90 %
Price Comparison Last Updated (21.11.19)
Amazon Link
$147.74

Top 10 Picks

1. Gorilla

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
99.7
Gorilla
Amazon Link
Materials
100
Durability
100
Size
99
best offer for today
Amazon Link
$2,999.99
Pros:

The height is adjustable

Dubbed as the most durable model in the world

Designed with large EZ windows

Cons:

Will be too large for some people

When searching for the best of the best, and the largest, you should look no further than the models from Gorilla Grow. Their 10 by 20 model is their most impressive and largest that is for sure.

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Materials
In conjunction with the powerful Velcro seals, the diamond reflection technology manages to keep as much light sealed inside as possible. Also, the dense threading assists in retaining all odors and light. All the ducting ports are optimally configured in areas that are logical and easily accessible. In addition, the large EZ windows offer easy snapshots and viewing.
As for assembling the tent, let’s just say that you should consult some of your friends and family to assist you with this endeavor. Due to its sheer girth, it could be difficult to assemble by yourself.

Durability
With the thick 1680D material, this is easily the most durable model in the entire world. Plus, with the enhanced frame, you could literally do pull-ups on this beast.

Size and Space
At 10 feet tall by 20 feet wide, you would be hard-pressed to find a tent that offers more growing space than this one. Of course, it is also convenient that the height can be adjusted from seven feet to 10 feet.

Overall
There is no doubt about it; the top model on this list is suitable for growing enthusiasts. Casual gardeners will not want to pay the price for this model and that is fair.

2. Gorilla 4 by 4

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
98.7
Gorilla 4 by 4
Amazon Link
Materials
98
Durability
99
Size
99
best offer for today
Amazon Link
$237.00
Pros:

Designed with micro mesh pest control pre-filters

Offers 360-degree access

The metal poles can support up to 500 pounds

Cons:

Light may leak through from the zippers

If the prior model is simply just too extensive for you, how about you look into the four by four-foot model from Gorilla Grow? It sports many of the same impressive features, after all.

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Materials
The same 1680D reflective walls that are used for the previous entry are used here. But, some buyers have reported that light can leak through the front set of zippers. Gorilla Grow understands how to configure their growing tents and this model also has its double-cinching ducting ports optimally located for ventilation convenience.
As for assembly, one buyer noted how getting the final side up and zipped gave them moderate issues. For the most part, though, the assembly process should be relatively hassle-free.

Durability
As this is built with an ultra-durable, all-metal frame it can hold an astounding 500 pounds. This provides maximum safety and security that is for sure.

Size and Space
While this is not quite as large as the previous tent, it still stands nearly seven feet tall (with an extension for nearly eight feet) with a width of four feet.

Overall
Even though you still need to spend a pretty penny for this model, its shrunken size will be more feasible for certain owners. But, the quality shows in pretty much every area.

3. Apollo Horticulture

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
98.3
Apollo Horticulture
Amazon Link
Materials
98
Durability
99
Size
98
best offer for today
Amazon Link
$104.99
Pros:

Built with a durable metal frame

There are plenty of ventilation options

Features double stitching

Cons:

Can be a pain to assemble

Some users have claimed there are minor light leaks

Gorilla Grow could be considered the Jedi of these types of tents, but Apollo Horticulture also sells an excellent model. Trust us, the few extra dollars you will pay for this will be well worth it.

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Materials
The combination of the Mylar lining, which is both 100 percent lightproof and tear-proof, and the Mylar floor tray minimizes as much escaped light as physically possible. Integrated into this unit are a ton of windows (that can be opened for ventilation) and exhaust ports. All in all, proper ventilation is not going to be a concern here.
A few buyers have commented on the assembly process in a negative way. Not only can it be difficult to put together anyway but the instructions have also been criticized.

Durability
Both the double-stitched fabric and the metal framework together to provide the foundation for this tent. Overall, this combination does an admirable job of such.

Size and Space
For your reference, this tent measures 48 inches by 48 inches by 80 inches. Among the entries in this list, that is about normal.

Overall
As a consumer, this will simply be one of the best grow tents that you will stumble upon. The fact that it is the price it is listed at is merely the icing on the proverbial cake.

4. Gorilla LTGGT22

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
98
Gorilla LTGGT22
Amazon Link
Materials
98
Durability
98
Size
98
best offer for today
Amazon Link
$163.46
Pros:

Sports micro mesh pre-filters

Has optimal configured ducting ports

With the extension poles, you can adjust the height

Cons:

You may find loose strings here and there

There is only one load bearing support

Hey, would you look who has made it back on this list? Well, this could almost be considered the starter model for Gorilla Grow. If you are looking to take things slow, highly consider this bad boy.

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Materials
Thanks to the tightly reinforced seals and the durable fabric, your plants and herbs inside this tent will be allowed to grow with very little light escaping. Again, as this is a growing tent from Gorilla Grow, it has been outfitted with expertly engineered ducting ports that are exactly where they should be.
As for the assembly, You should not run into too much trouble here but take the advice of another buyer and ensure that you install the roof last. With it on, it becomes extremely difficult to install fans and lights.

Durability
While you may find a few loose strings here and there, the structural strength of this unit is very impressive. This is because of its solid interlocking frame and durable canvas.

Size and Space
If you invest in the adjustable extension poles, which are sold separately, then this tent can become adjustable. With the poles, it can be adjusted from 5-foot 7-inches to 6-foot 7-inches.

Overall
With or without the extension poles, this is another example of Gorilla Grow setting the standard with this technology. At the end of the day, your money is safe with them.

5. iPower Hydroponic Mylar

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
97
iPower Hydroponic Mylar
Amazon Link
Materials
96
Durability
97
Size
98
best offer for today
Amazon Link
$121.99
Pros:

There are plenty of pockets for routing

A larger option can be selected

The window is sealed with transparent plastic

Cons:

You have to manually release the locking mechanism to lower it

There have been negative reviews in regard to leaking light

This next tent is one of the more popular models in the world and it is not difficult to see why. After all, it sports double layer ventilation, a heavy-duty structure system, and plenty of space.

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Materials
The Mylar lining used for the interior is 99 percent reflective. In addition to this, the tear-proof fabric is double stitched to seal in even more light. In addition to the double layer ventilation ducting holes, there are bottom ventilation windows that can also create an optimal environment for your plants.
When assembled, this is not too difficult to raise but the same can’t be said when you need to lower it. Because you need to physically release the locking mechanism, that is.

Durability
iPower built their grow tent with sturdy and reliable heavy-duty poles. They are rated to handle at least 110 pounds, which should be suitable for most of your needs.

Size and Space
Even if the base model, which measures 60 inches by 60 inches by 80 inches, is not large enough there is a larger model available. This one measures 120 inches by 120 inches by 78 inches.

Overall
Can you see why so many buyers have raved about this particular model? It is simply going to be a feasible option for nearly all buyers out there.

6. Vivosun

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
96.3
Vivosun
Amazon Link
Materials
96
Durability
96
Size
97
best offer for today
Amazon Link
$105.99
Pros:

Features heavy-duty SBS zippers

Designed with an easy-access door

Has a dual-layer ventilation fan opening

Cons:

The general consensus is leaking light will persist

Even though leaking light can be a minor issue here, which is not unusual as you have already been witnessed to, users will appreciate the heavy-duty construction.

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Materials
The general consensus amongst the consumer base is that occasional light will leak through this tent. But, the 98 percent reflective Mylar lining does retain a lot of it. There is a dual-layer ventilation fan opening integrated into this tent. With it, the inner layer seals tightly around a ventilation fan.
Though the included instructions are not the best, according to a few buyers, Vivosun promises that their tent will install very quickly with no real speedbumps to worry about.

Durability
Not only did Vivosun place an emphasis on their heavy-duty metal zipper, they also engineered their model with top-quality 600D canvas that is double stitched and tear-proof.

Size and Space
There are smaller and larger size options available but this particular tent measures 60 inches by 60 inches by 80 inches.

Overall
It is tough, no matter how amazing the design, for these types of tents to not allow any light to leak. As this proves, this issue is not enough to ruin the product as a whole.

7. Finnhomy 600 D

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
95.3
Finnhomy 600 D
Amazon Link
Materials
95
Durability
95
Size
96
best offer for today
Amazon Link
$133.99
Pros:

The outer shell is made of commercial-grade 600D fabric

Contains several ducted ports

Features a powder-coated steel frame

Cons:

The floor lining is susceptible to tearing

Leaking light can be an issue

Even though this is still one of the better models out there, there is a bit of dip in quality here. Just be wary as the floor lining may accidentally tear if you are not cautious.

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Materials
To provide a second layer of protection, this has been made with a separate floor pan and five-inch tall lip. Oh yeah, speaking of the floor, the Mylar floor tray is 100 percent reflective. Looking past the multiple mesh-covered windows, there are also several ducted ports that feature drawstrings. All in all, proper ventilation will be easy to achieve here.
Without the use of any tools, this tent can be assembled in a matter of minutes. Clearly, this will fluctuate depending on your assembly experience.

Durability
The metal poles reinforce this tent and allow it to optimally hold up to 110 pounds. In addition, the 600D high-quality fabric is double stitched and tear-proof.

Size and Space
As with other models, there are multiple sizing options available. The largest model measures 96 inches by 48 inches by 80 inches and the smallest measures 48 inches by 48 inches by 80 inches.

Overall
No, this is not made with cheap fabrics and materials. However, the floor liner is not top-notch and can be susceptible to tearing if you are not careful. Other than that, the goods are delivered.

8. CoolGrows Indoor

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
94.3
CoolGrows Indoor
Amazon Link
Materials
94
Durability
94
Size
95
best offer for today
Amazon Link
Pros:

Built with a powder-coated frame

Includes a water-resistant spill tray

Comes equipped with a viewing window

Cons:

Some of the seams need quality control

The zipper is not very smooth

At this point in the list, nothing is going to take you aback with this next model. It is designed in the same manner as several of the others but all things considered, that is far from a detriment.

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Materials
Overall, the Mylar lining is able to retain a lot of the light that is shining inside. However, there are a few seams in this tent that will let some of the light through. You do not need to worry about ventilation with this unit as there are vents integrated. Plus, there is a see-through window plastered on the door.
A great attention to detail was given to this unit when it was designed as even if you have little to no experience assembling products, it should still be easy to do so.

Durability
As with most other units in the world, 600D fabric has been utilized throughout. It is also reinforced by metal poles which add structural stability.

Size and Space
While smaller variations are available, the one that offers the most space is the model that stands 80 inches tall with a 40-inch width.

Overall
In this day and age, it can sometimes be very challenging to find an affordable product that is also of high-quality. Well, CoolGrows proves that, while challenging, it is not impossible.

9. Growtent Garden

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
93.3
Growtent Garden
Amazon Link
Materials
93
Durability
92
Size
95
best offer for today
Amazon Link
$60.00
Pros:

Comes with poles to hang lights and fans

Designed with a reflective lining

Overall, the assembly is straightforward

Cons:

The zipper is rather subpar

Whether you are on a budget or simply can’t imagine spending so much money on a grow tent, Growtent’s model may not be a bad choice. The biggest complaint we have seen with this one is the cheap zipper quality. Looking past that, we bring you another great choice.

Read more

Materials
Indeed, this is not as efficient as top-end models. Because of the canvas fabric, leaking pinholes of light will be all-but inevitable; despite the claims that are delivered. As mentioned above, the zipper also leaves more to be desired.
As for assembling the tent, it is fairly simple but you must use caution. The Mylar fabric is typically fairly tough, but it is a tight fit over the metal frame. A few reviewers had issues with the fabric ripping near the zipper while assembling.

Durability
The metal frame is secured with sturdy metal connectors and the thick Mylar material fabric covers it. The poles of this tent are made from metal and can handle up to 110-pounds.

Ventilation
To increase the airflow, there are high-density meshes and vents integrated. Also, they will not allow any flying insects to intrude. Depending on the size of tent that you chose, there will be anywhere from 1-3 ventilation windows. Some users have complained about the placement of the windows but may not have realized that these are strictly for ventilation, not for looking at the plants.

Size and Space
One of the best features of this tent is the number of sizes that it is offered in. You can choose from 9 different sizes, ranging from 32x32x63 up to 96x48x78 (inches).

Overall
While this tent has its advantages and disadvantages, we still believe it’s a strong contender. The number of sizes to choose from combined with the airflow and stability makes this a great choice.

10. TopoGrow

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
92.7
TopoGrow
Amazon Link
Materials
94
Durability
94
Size
90
best offer for today
Amazon Link
$147.74
Pros:

Two tiers

Three separate growing areas

Comes with everything you need

Cons:

Could come in bigger sizes

If you are looking to start your own indoor growing expedition than this is a grow tent to check out. Not only does it have three different spaces for three different growing cycles but also comes with everything you need to start. Great price for a great grow tent!

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Materials
This grow tent comes with two different types of lighting. First it has a CMH 315W grow light which acts as close as you can to natural sunlight. Second this grow tent comes with fluorescent lights as well. Designed into this unit is a circular double-sleeved vent hole. Basically, this can be used to handle cables and also for air circulation with a reflector, exhaust fan, or ducting hose. All ventilation accessories come with this grow tent.
The product description raves on how easy this grow tent is to assemble and disassemble (for an easier cleanup or relocation). Of course, one user shared their experience and claimed the frame gave them serious hassles.

Durability
This grow tent is built with 600D oxford cloth for the outside and mylar inside to make sure it is reflective and your plants get the most light they can. Highly durable and waterproof.

Size and Space
This grow tent measures 48x36x72 and growth space is 36x36x72.

Overall
This model is proof that you do not need to spend half-a-grand to invest in a high-quality growing tent. Then again, its shortcomings in some areas do also play a role in the price.

Criteria Used for Evaluation

Materials

Do you really think it is possible for plants to grow in darkness? They may not die right away but without photosynthesis, plants are hopeless. So, you need light. Typically, this would come from the sun but if you keep it indoors in a grow tent, nothing inside can receive sunlight. Well, the onus is on you to install proper lighting inside but what manufacturers need to do is design their tents to retain as much light as possible. One of the most popular manners in which this is achieved is with Mylar lining.

This is a reflective material that is used for the interior lining and it manages to direct the unused light back into the growing space. Without this, there would be a ton of wasted light and the growing process would be significantly less efficient. But, past the lining, you also want to look for reinforced seals and possibly even double-stitched fabric. Some light leakage may be inevitable but the more of it that is minimized, the more efficient the tent will be.

Proper airflow is an essential part of the growing process when you utilize this type of tent. Both the temperature and the humidity need to be controlled and without proper ventilation, this is all but impossible. Hence, this is why you will see designers integrate all sorts of ventilation options for you. Clearly, it is up to you to decide how you want to ventilate and the accessories to buy but the tent plays a major role in that. For instance, you want to make sure that the fresh air intake vents and the exhaust vents are located in a way that will adapt to your specific area.

This is another reason why Gorilla Grow’s models are so amazing because they specifically engineer them with ducting that is configured in the most logical manner possible. With proper ducting, you could hook up an exhaust system to move all the hot and humid air from the growing space to another location.

Durability

One of the primary reasons that Gorilla Grow claims that they produce the best grow tents in the world is the manner in which they construct them. In terms of durability and their overall build, you need to assess the canvas and the frame (as that is essentially all growing tents are). Now, if you are planning on installing the unit indoors, the durability and weather protection will not be as important. But, the stability and support structure (and fabric’s strength) certainly will not matter where you install it.

For the canvas, analyze the denier of the fabric. While most will be 600D, being both tear-proof and waterproof, you may see some (such as Gorilla Grow’s models) integrate 1680D material. Also, as mentioned earlier, double stitching is ideal as it adds extra strength to the canvas. As for the frame, steel is a popular choice but if you install it outdoors, you may want to ensure it has been powder-coated. This will add enhanced weather protection to the steel but may not be mandatory for indoor usage.

Size

The old adage size is everything certainly is appropriate here. Everyone is going to have different uses for a growing tent and it is essential that you figure that part out before you buy one. The absolute worst predicament you could find yourself in is if you buy a tent that is too small or too large for your situation. If you need space for a plethora of plants and are going to create a full-fledged garden, you may want a larger area with more space to roam in. Then again, if you only need it for a plant here and there, you may not even need to step inside of it.

In addition to this, you also need to figure out how tall you need the tent to be. To do so, assess the height of the plants that you want to grow inside of it. Because you want a good amount of headroom for your plants, if they are close to touching the roof then you need a taller tent. The light needs to reflect off all surfaces for the most efficient grow possible.

Expert Interviews & Opinions

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Location Location Location

Your plants won't react well in stressful environments. When you decide on a place, be sure that you can keep the tent there for at least a few months. Also, pay attention to the surface that is under the tent. If the tent is indoors, remember that when watering your plants, spillage can be unavoidable. If you can, try not to put the tent on carpet or wood floors.

Lights

The same lights won't always work with each tent. Depending on the size of the tent, you will need to choose the lights accordingly. You don't want to create too much "sunlight" or heat in a small space. This could result in burning the plants, if you aren't cautious.

Other Factors to Consider

Ease of Use

So, how hard are these apparatuses to assemble? Well, the answer to this question is purely subjective but here is the compelling news, most of them will be assembled in the same manner. As such, if you have any experience assembling one then you should be able to pick another one up without any issues. However, when just starting out, it still should not be too big of a deal given the fact that you really only need to assemble the frame and install the cloth.

If it sounds too easy to believe, start believing. Yet, some models, depending on the engineering of the frame, will naturally be easier to assemble. In addition adequate instructions, at least, do help in this endeavor.

Frequently Asked Questions

q: What is Hydroponics?

a:

Have you ever heard of growing plants without soil? Well, if you have, then you know exactly what hydroponics is. Even though you may have never known that this is the actual word for it, now you do. Basically, plants will thrive and live off of nutrient-water solutions alone. This is probably the manner in which you will allow your plants to grow inside so do some research on the science.

In short, though, while the solution is passed through the plant, the growing medium merely acts as a support system. This process is actually the fastest growing sector of agriculture in the world.

q: Are grow tents loud?

a:

Here is a news flash; grow tents can not only be loud but they can be so loud that it actually forces you to consider selling your tent altogether. The reason why they can emit so much noise is that of the accessories that are required for them to operate correctly. For instance, the exhaust fans, tube vents, air pumps, and any other electrical components can produce a heck of a lot of noise.

But, what can you do about it? Well, there are some remedies to the noise issue that is the good news. Among the choices to try out, you could suspend the fans in an enclosure to better block out the noise, add a muffler to your exhaust duct, use insulated ducting, or even soundproof the room altogether.

q: How much will the electricity bill increase?

a:

Ah, now we reach a question that is going to be mightily difficult to answer. Well, it will be difficult in the sense that everyone’s situation will be different and some people will utilize different electrical components with different power usages. Yet, it is not a difficult question in the sense of yes, your electricity bill is going to increase no matter what you do. For example, you will have to ensure there is proper lighting inside the tent, as well as ventilation.

Doing so will probably require electricity which will, in turn, jack up your electric bill. So, it is important to research which lighting methods and ventilation methods are the most efficient. The goal is to always save money; so, why should this be any different?

q: Will they smell?

a:

In the same manner that these tents are going to be loud, they are also probably going to emit some sort of scent. Whether you interpret this as “smelly” is entirely your preference but you need to realize that plants do have an aroma and it is not always going to be pleasant. While your options are a bit limited when it comes to either masking the smell or completely getting rid of it, there are remedies to the solution that you can try out for yourself.

The first would be to physically scrub the tent down with an appropriate solution to attempt to rid the smell. However, you could also just opt for either an odor neutralizer or an air purifier. Both of these options may not get rid of the smell 100 percent, but it may mask it enough to make your current room tolerable to be in.

q: How do you cool them?

a:

Controlling both the temperature and the humidity of a growing tent is essential as certain plants can be finicky when you attempt to grow them. Most of the time, they will respond best to an environment that is consistent. Now, this is going to vary depending on the plants that you are growing so become knowledgeable about the right conditions for your specific plants. However, how can you control them? For instance, what if the humidity and temperature are too high even with an adequate amount of ventilation?

Perhaps the easiest and most suitable solution is to invest in a portable air conditioner. But, if you do not want to spend that kind of money, perhaps you could relocate the tent into a room that is not generating as much heat? Also, be sure to monitor and control the humidity levels as this can drastically increase the real feel of the temperature.

q: When do I change the nutrient solution?

a:

If you decide to go with a nutrient solution, then you need to be aware of when it is time to change it. But, several factors are going to come into play. Variables such as the temperature of the grow room, how heavily they are feeding, and the type of crops being grown will all have direct effects on how long a nutrient solution will last. So, this is why investing in either a pH meter or a TDS meter is essential as these devices can provide with detailed information that you will need.

With one of these devices, perform regular checking on the solution to ensure it is still is up to par with what it should be. This really is just a glimpse of how detailed this question can get so if you have any further questions, research hydroponic feeding tips from proper universities and sources.