Tetra LED Cube Kit Fish Aquarium, 3-gal

By Tetra
Rated 3.3077 out of 5 stars
$42.94Chewy Price
$52.39Chewy Price

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This Item – Tetra LED Cube Kit Fish Aquarium, 3-gal
Rated 3.3077 out of 5 stars
$42.94Chewy Price

Spend $100, Get $30 eGift Card with code: FALL

Tetra Whisper Bio-Bags Small Filter Cartridge, 2 count
Rated 4.5122 out of 5 stars
$3.12Chewy Price

Spend $100, Get $30 eGift Card with code: FALL

Total Price: $46.06

About This Item


  • All-in-one compact tank solution for keeping one or two fish.
  • Minimalist modern design features a clear top with feeding hole and pedestal base.
  • 3-gallon capacity in a 10-inch square cube tank.
  • Comes with low-voltage bright white LED lighting for energy-efficient, pretty illumination.
  • Air-powered Whisper three-stage filtration keeps aquarium water clear and odor free.

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Fish TypeTropical FreshwaterBetta, Tropical FreshwaterBettaBetta, Bottom Feeder, Cichlid...
MaterialPlasticGlassPlastic, GlassMetal, Glass, Steel
Capacity (Max)3-gal2.7-gal1.1-gal10
Aquarium TypeFreshwaterFreshwaterFreshwater

Questions & Answers

7 Customer Questions

Does it come with a filter, because the pictures suggest no?
Answer by ChewyJan 01, 2020
The items that are included in this kit are 3 Gallon Cube Aquarium, Whisper(R) Power Filter, Tetra(R) Whisper Bio-Bag Small Cartridge, Pedestal Base, LED Light, Low Voltage Power Adapter, Setup Guide.

is the light strong enough to grow plants?
Answer by ChewyJun 16, 2021
The light on this little starter kit is intended to provide natural daylight for fish only. Some low light plants will be fine under it such as anubias or java.

Does it have a heater or can one be easily added?
Answer by ChewyFeb 28, 2022
This aquarium does not include a heater. However, you can install a heater if needed for this tank.

What filter replacements do I buy?
Answer by ChewyAug 27, 2020
For replacement filters, this aquarium uses the Tetra(R) Whisper Bio-Bag Small Cartridge.

ReviewsWrite a Review

Rated 3.3077 out of 5 stars
13 Ratings
Would recommend to a friend

13 Customer Reviews

Rated 1 out of 5 stars
By JDK on Jun 3, 2023

Was excited

Wanted to love this. Perfect size and I prefer the square shape. Not even two weeks and the filter isn’t working AND the tank is leaking. Extremely disappointed

Rated 1 out of 5 stars
By Kimberly12 on Dec 16, 2022

Made out of plastic and leaks

Don't waste your money, leaks and is made out of cheap plastic

Rated 4 out of 5 stars
By April on Sep 4, 2022

It is a nice tank

Mine had a cracked lid but besides that it is perfect, everything works and doesn't leak. It is pretty light weight and that is helpful for me.

Rated 4 out of 5 stars
By CatL on May 20, 2022

Good tank, be wary of the filter

I ordered two of these tanks a few weeks ago for my new house. I went to set them up long before the move so they could hopefully cycle by the time I’m ready for fish to be moved into them. They looked great when I first set them up, but when I got back a day later there was water all over my floor. I assumed it was a leak since I hadn’t checked if they held water before I set them up. I emailed chewy, and since they’re amazing, they sent me two more. They got here within two days, and I had filled both of them with water and left them for two days before I actually set them up to make sure they didn’t leak. Everything was great so I added the decor, got the filter and heater set up etc. luckily for myself I went back again the next day to double check they hadnt leaked. When I walked in and saw water all over the floor I almost screamed. After some further investigation I finally realized that the filter was overflowing out the back and that is what was causing the tanks to drain. So while I really recommend these tanks, and I think the price for this kit is super worth it, I wouldn’t necessarily recommend using this filter. But the tanks themselves are gorgeous rimless aquariums, especially for the price!

Rated 5 out of 5 stars
By Shep on Jul 29, 2022

My 3gl cube PRL'S setup

Love this tank, turn out fine. I have my PRL'S Shrimp in there, 10 in all. Tank is for relaxing and observations.

Rated 4 out of 5 stars
By Spark on May 16, 2022

Functional Beginner/Breeder/Hospital/Terrarium Tank

This tank is cheaper than others for a reason; the acrylic isn't fully clear and it warps just the tiniest bit under the pressure of water, but that should really be expected on the part of the consumer. Overall, this tank (while a bit flimsy) is functional. Both the light and filter that came with mine work perfectly. The filter is very gentle and has a small intake, making it pretty suitable for use with baby/juvenile aquatic creatures without having to make modifications. The filter also need not utilize cartridges as you can easily fill it with different filter media. I got this tank to use as a hospital/quarantine tank for one of my fish, and now that said fish has recovered and been moved back to my 20 gallon, I'm using this tank for my gravid ghost shrimp to release their young in. Since the filter is so gentle, the babies won't get blown around by the current as much and hopefully won't get sucked up into the intake as easily, if at all. Overall this tank would be good for: -Housing some types of aquatic creatures such as snails, shrimp, and small fish that stay small (you could probably keep a betta relatively easily in this); I'd stick to beginner friendly aquatic pets, especially inverts for this one -Temporary quarantining of some aquatic creatures such as smaller fish and inverts for medical treatment, breeding, and/or spawning -While it's nice that it comes with a filter, you could easily leave the filter out and repurpose it for something and use this tank for a terrarium instead of an aquarium What to avoid with this tank: -Permanently housing fish larger than 1-2 inches big (this tank is too small for that) -Permanently housing any creature that can/will try to escape; the lid for this tank has openings for the filter and feeding and it just rests on top of the tank. If a fish tried to jump out, it wouldn't be difficult at all for it to knock the lid off or escape out of one of the holes. Of course, if you modified the lid or got a different one, you could probably negate this issue -Using sharp, and/or heavy substrate, decorations, and certain cleaning devices like algae scrapers. Again, this tank is somewhat flimsy and made of plastics; the bottom stand part of the tank would not support heavy rocks/driftwood and other decorations, and items with sharp edges will scratch and compromise the acrylic. I filled my tank with sand, two small plastic decorations, and I'm trying some live plants in it at the moment, though I have no idea how long those will last lol.

Rated 1 out of 5 stars
By Dafily on Jun 21, 2022

Fish tanks

Fish tanks leak constantly....almost lost both my bettas. Never figured out why this kept happening...turned the tanks into terriams and bought new tanks.

Rated 5 out of 5 stars
By Autumn on Dec 20, 2021

Love them!

I have 4 of these and will be buying another one soon. My Betta love them.

Rated 5 out of 5 stars
By Beth on Jun 4, 2021

Very nice tank

I loved how simple it was to set up. Great for beginners as it comes with a filter and a light. Suitable for one beta fish, or for some shrimp. Does not include a heater, so be sure to add a small one! Just set it up, cycle it, and your ready to go. Simple & stylish.

Rated 1 out of 5 stars
By Tetra3galLEDCubeKit on Jan 8, 2021

Not fond of!

The tank is made of all plastic & there is no cover for the feeder, I had to tape all sides down . Plus the lid remaines full of due and there is a large gap where the filter goes that I also had to tape over so my beta doesn't escape.