Best 3x3 Grow Tent Setup Of 2023

3x3 grow tent have the benefit of being on the cheap side, and a lot practical as well. Some even say three by three is the perfect grow tent size, as you use floor space efficiently, while having enough room to develop healthy yields.

Best Less-Expensive 3x3 Grow Tent

There is only one place to begin, and this is with a grow tent that has already got a great reputation in the industry. 

This tent has been made to last, its mylar interior offers 99% reflectivity, comes with a thick 600D outer canvas, and high-quality zippers with concealing flaps.

There is a reflective, removable floor tray, designed which comes really handy. There is also an observation window that makes it easy for you to keep an eye on their plants without disturbing the environment.

The installation process is another highlight of this grow tent. It comes with metal poles that offer easy-to-click connections, making the installation process fast and easy.

  • Steel frame and corners.
  • Viewing window with light filter.
  • One-year warranty.
  • Includes a removable mylar spill tray.
  • Discreet packaging.
  • Some people have found the tent a bit difficult to assemble.

#1 Amazon Best Seller

This grow tent ticks all of the boxes in terms of quality and durability. 

The 600D canvas exterior, 98% mylar interior, and heavy duty zippers with double layer black lining for extra temperature efficiency.

The sturdy crossbar can manage the weight of your grow lights, fan and carbon filter without issues.

While the dual ventilation allows for active or passive air intake, sealing around your fan seamlessly.

The observation window so that you don’t need to constantly open the door to check on your plants. And there’s a detachable waterproof floor tray for easy integration of hydroponic systems.

I have reviewed Vivosun grow tents before and definitely recommend them.

  • Strong steel poles and corners with interlocking.
  • Various ventilation ports allow for different setups.
  • Heavy study and sturdy metal zippers.
  • Removable floor tray.
  • You may get some light leakage through the zippers.

Highest Quality 3x3 Grow Tent

This is the Original Gorilla Grow Tent, the tallest in the round up with 83", and the sturdiest too. With 1680D the canvas is thicker than any other grow tent on the market. 

It can also be vertically expanded with height extension kits. You can expand these further and enjoy a 10-foot height grow tent.

The other notable feature of Gorilla Grow Tent is the full wrap-around, heavy-duty zippers. Which let you access your crop from any angle and all around it.

Combine this with the super sturdy construction of this grow tent, and it is not hard to see why this is considered one of the most reliable and durable solutions. On the other hand, they're really expensive compared to other brands.

I have also reviewed Gorilla Grow Tents before and I recommend them 100%.

  • The best quality on the market.
  • Adjustable features so you can increase the height with ease.
  • 1680D provides a safer, quieter, odor-free, growing environment.
  • A higher than average price point.

Best Quality-Price

This is another grow tent that ticks all of the boxes. The fabric is lightproof, yet heavy-duty at the same time. There are numerous round vents that have filters and fit fans of various sizes.

The frame is a cinch to set-up thanks to the tool-free metal connectors, so you are not going to have to spend hours looking at instructions!

The tent also has solid support thanks to the heavy-duty, powder-coated steel frame. Because of this, you can expect it to last you for years to come.

It is also tear-proof and 100% reflective. You can hold as much as 110 pounds of tools in this three by three foot tent.

  • Easy-to-assemble model.
  • Reliable and sturdy materials.
  • Outstanding reflection.
  • Excellent customer service.
  • No viewing window.
  • The brand has some communications delays.

Rising Star

The final grow tent that we are going to recommend is this one from MAXSISUN. It is compact, boasting a multi-chamber design, which will expand your growing space.

Premium quality is delivered via the zinc-plated poles and 600D fabric. The frame can support as much as 120 pounds.

If that was not enough, the tent also comes with dual ventilation socks, which seal tight around ventilation fans and filters. Pests are locked out and the light is kept in thanks to the micro-mesh ventilation ports.

Easy cleaning is also delivered as a consequence of the waterproof floor tray.

  • Multi-chamber design.
  • Waterproof floor tray.
  • Cheaper than other models.
  • Some light leaks.

Best Grow Lights For A 3x3 Tent

After you've decided the right grow tent, you need to fill it up with the right equipment. And the grow light is the most important of them all.

How Many Watts Do I Need For A 3x3? The typical LED is going to draw approximately 32 watts to cover one-square-foot for flowering[1]. For a 3x3 you're it's somewhere between 250 and 300 watts. 

However the latest LED lights provide more light intensity (and spectrum quality) with less watts[2]. And provide highest yield/square foot than any other kind of grow light. Here are the best two grow lights for a 3x3 grow tent:

This grow light has an outstanding reputation, and rightly so. It offers silent operation, as well as the latest SMD LED technology.

This light has just enough coverage for 3x3 grow tent. Consuming only 150W it saves a lot more energy than other types.

The light spectrum that this light provides is as close as natural sunlight as you can get. Works for all stages of cannabis plants and increases yield and crop quality.

There is an in-built dimmer switch as well, ranging from five to 100 per cent. 

And the highly reflective hood, with a fanless design will make your growing life easier, while still giving really low heat output. Allowing your plants to receive more light without harming or burning them.

660-665nm Red IR/3200-4200Knm/5200-6800Knm.

  • Long lifespan.
  • Affodable.
  • Highly reflective aluminum hood.
  • The coverage is tight.
  • Dimming needs a screwdriver.

I've tested almost every grow light on Amazon and Viparspectra always takes the price. It simple has the best quality-price relation, and an outstanding performance.

This "zero noise" design comes with a sturdy aluminum heat skin to dissipate the extra heat and keep your lights cooler. 

With ample coverage it can handle the biggest 3x3 grow tent without issues.

It also comes with a user-friendly knob for dimming, so you can adjust light intensity according to your needs and plants distance.

Consists of 3000K warm white, 5000K white, 660nm deep red, and 730nm IR light.

  • Great value for your money.
  • Easily adjust intensity with a knob.
  • Samsung LM301B diodes.
  • Top notch warranty.
  • The light spectrum might be lacking for perfectionists caring for every detail.

Best Accesories For 3x3 Grow Tents

There's more to tents than grow lights, as you already know. Ventilation and controlling the environment are key in growing cannabis indoors. These are the best accessories for all your 3x3 tent.

Inline Duct Fans

When it comes to inline fans for a 3x3 grow tent, you'll do more than fine with a 4" duct fan. Most of four inches fans are able to deliver enough CFM for grow tents this size. 

You can check my grow tent ventilation guide for details, but long story short, you want between 130 to 190 CFM for a 3x3 grow tent. Here's two duct fans that will do the job: 

With an adjustable speed from 0 to 100 percent, it is impressive to see that this fan is completely silent. No matter how fast the fan goes, you can expect no additional background noise or hum. Aside from this, expect durable aluminium housing, energy savings, and PWM and 0-10 VDC support.


  • Intelligent design.
  • Variable speed control for greater control over your growing environment.
  • Quieter than other models.
  • If you're fighting high heat or humidity the CFM might be a little low.

Vivosun are well-known for their excellent products, and this one offers excellent value for money.

This 4 inch duct fan is well-designed for the most part, although the weak blades have been a problem for some.

The motors are fast and capable of ventilating your grow room in no time.

The 190 CFM means to it can accommodate any amount of plants and environment conditions that you can have in 3x3 grow tent.

  • A well-built duct fan at an affordable price.
  • Easy to install with a 5.4 feet power cord.
  • Speed controller attached.
  • Plastic blades and housing reduce fan noise.
  • Some users have experienced scraping noises.

Carbon Filter

A carbon filter comes in handy when you want to keep under control the smell of cannabis plants (and boy, do they smell). If you need to conceal the fact that you have an indoor grow going on, definitely get a carbon filter.

4" carbon filter will work extra well[3] for the airflow of 3x3 grow tent, and also fits the inline fans we reviewed above.

The iPower Air Carbon Filter is one of the best options out there.

Comes with 1050+ IAV Australian RC412 Activated Carbon, which is one of the most absorbent carbon available and does a great job at eliminating the odors of growing marijuana. Capable of producing an airflow that is 100% filtered.

The inner and outer mesh provide a 53% open area for improved air flow, making it more effective in odor management.

The unit can be used as either an intake or exhaust. It even comes with two sturdy belts for easy application.

  • Reversible flange for extended life service.
  • Quality materials.
  • One of the world's most absorbent carbon.
  • Some customers reported poor handling of the package.

Dehumidifier For A 3x3 Grow Tent

Effective, quiet and small; everything that you would want from a dehumidifier for your grow tent.

This product can be operated with just one button, switching it on and off. Or you can make use of the timer if you want need to micromanage your environment.

Once the 3 pint tank is filled (with water from removing air humidity), you will be alerted with an alarm and the dehumidifier will automatically shut off.

Also comes with a small plastic hose for drainage, that comes very handy if you don't want to use the tank or you find that it's too small. 

The small size (11.30 x 6.70 x 19.70 inches) makes it great for our case. And worry not, customers use this unit for small bathrooms, so be assured this is a great dehumidifier for 3x3 grow tents.

  • Various reports of very good customer service.
  • Great size so it won't intrude with your crop.
  • Auto shut-off and alert when full.
  • The fact that they had to contact customer service in the first place.

3x3 Grow Tent Package And Kits

If you'd rather get all-in-one plus adding some extra trinkets on top, definitely go for a 3x3 grow tent package. These are the best deals right now that come with everything you need to get you started.

This grow tent package from BloomGrow does not disappoint. It includes:

  • 4" Inline Fan + Carbon Filter + Ducting
  • 300W LED Light
  • Hangers + Hygrometer +  24 Hour Timer + Shears + Trellis Netting

Not only does it come with a premium quality grow tent, which boasts a 96 percent reflective and waterproof diamond mylar. It also offers an inline fan, grow-light, and a waterproof floor tray.

This is a good choice for beginners who are looking to buy everything they need.

  • Affordable.
  • Ideal for beginners.
  • The grow light could be better, but not at this price.

This kit combines one of the incredible grow tents we mentioned earlier with a wide range of accessories, including an air filtration kit, timer, netting, hand pruners, and much more!

Indoor Tent Complete Kit with:

  • 4" Fan + Carbon Filter
  • 8 feet of Ducting
  • 300W Led Grow Light
  • Rope hanger + Hand Pruner + Trellis netting
  • Grow room glasses + 7 day timer + Hygrometer Thermometer

There is an excellent level of attention to detail with this grow tent kit, ensuring no stone has been left unturned. Plus, the installation process is very straightforward too, with no tools being required to get started.

  • Value for money.
  • Easy to install.
  • High durability.
  • Some users reported small light leakage.

How Many Plants Fit In A 3x3 Grow Tent?

To determine how many plants fit in a 3x3 grow tent, it all comes down to your growing technique.

Of course you can let the plants grow on the own. But the point of growing indoors is exploiting to the limits of the usable space and light available.

For this reason cannabis growers usually choose one of the following plant training methods. Here are a few configurations of plants per grow tent known to work efficiently.

  • SCROG method: 1 big plant or 2 small plants.
  • LST method: 3 - 4 small plants.
  • SOG method: Up to 14 plants depending on how small the containers are.
  • Topping And Prunning: 1 big plant or 2 small plants.

3x3 Grow Tent Yield Examples

It's challenging to determine how much you will be able to yield from a 3x3, since there are many different factors that come into play.

Under ideal conditions you'll be able to have yields around 8 to 10 oz. Maybe even 12 oz with the right strain.[4]

Actual 3x3 grow tent yield, a few weeks until harvest

Your grow light is one of the most significant variables when it comes to yield, so you will want to make sure to get the best one you can afford.

What To Look For When Buying A Grow Tent

With crazy weather conditions being problematic for crops all around the world, the possibility to protect your plants and control the environment down to every detail, has been life changing for lots of cannabis growers.

If you are a first-time buyer, we know it can be challenging to determine what tent you should buy. But fear not! Let's go over the fundamentals so you know what to look for.

Ventilation Ports

Most common ventilation setup

I'm sure you know, but ventilation is key to keep temperature, humidity and CO2 under control. Which is key for your plants health and resulting yields.

Grow tents come with various ventilation ports. Some for active ventilation (inline fans), and some for passive ventilation (mesh windows).

Make sure the intake and exhaust ports are located in a way that aligns with your grow tent setup. That they correspond to the way you're planning to exhaust used air and get new clean air in (i.e. don't place the intake against a wall).

Height: How Tall Will Your Plants Grow?

Finally, you should choose a tent that ensures you’re going to be comfortable while tending to your crops.

The height of your grow tent makes a big difference.

Generally when growing indoors you'll be growing Indica strains or Autoflowering seeds, which are shorter and bushier.

All of the grow tents featured in this roundup are perfect for this kind of strains and seeds.

If you need details you should check with the Seed bank, what's the expected height of your specific seeds. And then add up hanging the grow lights within a safe distance from the plants.

If on the other hand, you're growing Sativa strains indoors, I definitely recommend you go for the Gorilla grow tent, that also allows for adding height extension kits.

Poles Strength And Corners

Generally speaking poles are strong enough in all of these 3x3 grow tents.

If for however reason, you're expecting more weight than normal, look for a tent with steel poles so you're sure everything will be okay.

You could be looking at extra weight if you have heavier, or multiple grow lights, or a complex ventilation setup.

If you plan to give your grow tent a lot of use, and you expect it to last through the years, I strongly recommend you also look for steel corners, with interlocking mechanisms. These will last a lot longer, and be much easier to use.

Quality And The Space Around Your Grow Tent

If your grow tent is going to be inside your home, and you have stable comfortable temperature, you shouldn't be too worried about canvas thickness or double stitches.

But you should worry if your grow tent is in your garage, your basement, or any other place where temperatures are not ideal or experience drastic changes.

A good quality grow tent ensures a better contained environment. More stable temperature, humidity, and air exchange for your plants, which results in much better yields.

A quality tent could pull through in any space with just a roof, floor, and walls. However, I do not recommend exposing a grow tent to the elements. I bet a few candidates from this roundup could do the job in a forgiving weather, but these tents are made for indoors.

Final Thoughts

So there you have it: an insight into some of the best 3x3 grow tents on the market in 2020. If I have to chose only one, I would certainly go for the CoolGrows 36"x36"x72.

This grow tent ticks most of the boxes while remaining affordable, great for beginners.

Let me know if you have any questions I can help you with!

Happy growing.

Hey there, I'm the person behind this website. I started growing cannabis in 2013 when marijuana was legalized in my home country. Today, on, I address growers need for knowledge and show you how to grow cannabis plants and enjoy amazing buds.

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