Marineland 3 Gallon Nook Aquarium

Another Marineland aquarium, another funny name (Nook? Seriously?). What this fish tank lacks in name, it more than makes up for in functionality, design and ‘badassery’. Your fish will be having the time of his life in here, plus you’ll have room for decorations and ornaments if you like. Along with the fish tank, you’ll also get:

  • LED lighting system
  • Hidden filtration system
  • Adjustable flow pump
  • Made from plastic material
  • Black canopy
tetra-fish-tank

Tetra Fish Cube

Continuing our countdown of 3 gallon fish tanks, this is a slightly bigger Tetra tank than the globe that we’ve featured elsewhere on the site, so if you’re needing more room for fun things like decorations and other accessories then this should be perfect. This tank also comes with a handful of nifty features that will make it even more fun for your fish, including:

  • 3i filter to keep your fish healthy and safe
  • LED lighting system
  • Feeding hole

Tetra GloFish Aquarium Kit

GloFish make excellent products, and this Tetra 3 gallon aquarium kit is no exception. Aside from being colorful (and making the inside of the tank feel like a rave), the fish tank also has enough room for a few decorations and ornaments, plus it comes with a few extras, including:

  • Aquarium Light with Blue LEDs
  • Internal Filter
  • Medium Filter Cartridge
  • Aquarium Set-Up Guide
  • Dimensions – 14.6 inches x 8.8 inches x 11.2 inches

Tetra Half Moon Bubbler

This tetra tank is very similar to the other half moon aquarium in this post, except it has a built in bubbler! If you’ve seen Finding Nemo then you’ll know all about bubblers (remember the Dentist’s office?), but in case you haven’t seen that film, bubblers produce bubbles. That’s about it really. Luckily, the tank isn’t just all about the bubbler, it also comes with:

  • Color changing bubbler – not literally, but the LED gives it a cool color changing effect
  • Cartridge based filtration
  • Controller for the color changing

MarineLand 3 Gallon Contour Kit

Aside from looking really cool, this contour 3 gallon fish tank is full of extras that make it an awesome choice for anyone with smaller fish. The rail light feature is really cool and gives it a unique look too. You’ll also get:

  • Daylight and moonlight LED settings – creates a unique look 
  • Discreet 3-step filtration & adjustable flow
  • Filter pump
  • Filter cartridge
  • Easy access glass canopy (perfect for feeding time)
  • Dimensions – 12 inches x 12 inches x 12.5 inches

GloFish Half Moon Fish Tank

Another 3 gallon half moon aquarium! I think this shape is popular because it allows for quite a good view of your fish without leaving them totally exposed. This is another GloFish fish tank, so is similarly colorful like the other GloFish aquarium in this list. With the tank you get:

  • Blue LED bubbler
  • Air pump
  • Internal filter
  • Small filter cartridge
  • Clear canopy (perfect for feeding)

Kollercraft Betta Fish Bowl

Although we’ve included this Betta bowl in our 3 gallon list, it isn’t the most highly reviewed item that we’ve ever included. Most of the reviewers over on Amazon didn’t even realize that it would be made of plastic, which gives it a much lighter feel than they were probably expecting. However plenty of the reviews seem pretty happy with it, so it’s quite a good cheap option if you need something that’ll simply keep your fish happy. Here are the main features:

  • LED light unit
  • Impact resistant built
  • Samples of API Betta food
  • Dimensions – 11.00 inches x 11.50 inches x 11.00 inches

Kollercraft 3 Gallon Hex Fish Tank

Kollercraft are great at making fish tanks which are simple and safe, and this 3 gallon aquarium is no exception. The unique shape makes it great for getting a good view of your fish, and the wideness of the tank means you can easily include your own collection of decorations and ornaments if you like. The fish tank also comes with:

  • Internal filtration system
  • LED lighting

Hawkeye 360 Fish Tank

Aside from looking really cool (kinda like a rocket ship) and having a cool name (kinda like a jet fighter), this fish tank is pretty new to the market so is still fresh out the box in terms of reviews. It doesn’t come with much – just an aerator which keeps the water healthy.

Marineland Silhouette 3 Gallon Aquarium Kit

This is a very stylish aquarium kit with a huge amount of positive reviews on Amazon. Another great thing is that the seller on Amazon has answered loads of questions about the fish tank (more than 30!), so you can really do your research. Because it’s a kit, you’ll have everything that you need to get started with your new fish, including:

  • Hidden 3 stage filtration
  • Daylight & moonlight LED settings
  • Hinged canopy
  • Adjustable pump
  • Dimensions – 14.1 inches x 13.6 inches x 12.2 inches

Tetra Crescent Aquarium Kit

Even though this fish tank is also available in a 5 gallon variety, this is a list of 3 gallon fish tanks so we’re going to be talking about the relevant size! This is described as desktop aquarium, probably for 2 reasons; firstly, it’s likely to fit comfortably on most desks, and secondly because it has a cool little light at the top (which is sort of like a book light). We love this fish tank because it has over 200 reviews over on Amazon (and an average score of 4 out of 5 stars which is pretty awesome!). It also comes with:

  •  Cartridge filtration
  • 16 LED light
  • Whisper filtration
  • Dimensions – 14.6 inches x 8.8 inches x 11.2 inches

Aquatunes Aquarium

This fish tank was so weird that we felt like we should just add it for the fun (and because it’s also 3 gallons). I’m not going to pretend like it’s the best aquarium in this list, I mean it’s basically just a speaker and fish tank combined. However, it does have some pretty good reviews so it must be doing something right.

Elive Aquaponics Aquarium Kit

This is described as a ‘semi circle’ fish tank which gives you a clue on the shape. Aside from looking really cool (and having a plant poking out the top of it like a crazy hairstyle), there are a ton of very useful features that this aquarium has which make it an awesome choice, including:

  • Made from glass
  • Hidden LED lighting
  • Dual filter
  • Set up guide
  • Dimensions – 13.5 inches x 8.7 inches x 11.7 inches

Top Fin 3.5 Gallon Enchant Aquarium

Ok, while this isn’t strictly a 3 gallon tank, we thought we’d still include it (towards the end of the list) purely because it’s a good choice and it fits well in our list. Described as an ‘enchant’ aquarium (I guess because it’s magical or something?), this tank has an impressive score of over 4 stars out of 5 from more than 50 reviewers, so it must be doing something right. Here is a quick rundown of the main features of this aquarium:

  • Made from plastic
  • Feeding door on hood for convenience
  • Color-changing LED lighting system
  • ‘Element’ filter
  • Available in black
  • Dimensions – 12 inches x 8 inches x 12 inches

Top Fin Aquaponics Desk Tank

Another Top Fin tank, another 3.5 gallon entry in what is supposed to be a 3 gallon list. But hey – it’s always better to get a tank that’s a little bit bigger for your fish than a little bit smaller, so a half gallon ain’t going to hurt one bit. This tank comes with a ‘planter’, which explains the crazy green hairstyle that it’s rocking in the image that we’ve selected. It’s also got other cool features, including:

  • Made from glass
  • LED
  • Pump
  • Average score of 4 stars
  • Dimensions – 10 inches x 9 inches x 10 inches

Aqueon Forge Aquarium Stand

Like all of our fish tank lists, we decided to end this 3 gallon countdown with a recommended stand. This is a highly rated stand (4 and a half stars from over 50 reviews) which would be a perfect match for your 3 gallon tank as it has a smaller lower shelf, and room for something larger on top (like a tv or even another fish tank!). Here are the main features of the stand:

  • 7 step set up
  • Reversible wood panels
  • Rust resistant coating
  • Dimensions – 28.5 inches x 18.2 inches x 5 inches
  • Weight – 15 pounds

A 3 gallon fish tank is just about the smallest size of fish tank or aquarium that we’ll ever recommend on FishTankBank, mainly because there are very few types of fish who would ever feel comfortable in a tank of this size. However, there are smaller species of fish who can live very comfortably in 3 gallons (like Bettas), so with this in mind we thought we’d create a list of the best 3 gallon aquariums and fish tanks we could find:

3 Gallon Fish Tanks & Aquariums (Kits & Stands)