Best biOrb Aquariums in 2021: Reviews with Comparisons

Best biOrb Aquariums in 2021: Reviews with Comparisons

What we are here to do right now is to help you find the best biOrb aquariums out there. Now, something that you do need to be aware of here is that biOrb is a brand of aquariums and fishkeeping equipment.

The name does imply that the tanks are going to be orbs or rounded in shape. This is true in some cases, although the name simply refers to the brand, not the shape.

Let’s do keep in mind that this is an extremely popular and trusted brand in the world of fishkeeping. These people make excellent aquariums that come in at fantastic prices. Either way, let’s get to it and help you find some of the best biOrbs out there.

Best biOrb Aquariums: Reviews

biOrb Classic Aquarium

If you want what is essentially a super advanced fishbowl, then this biOrb Classic Aquarium is a great option to go with. Yes, the shape of this tank is like a fishbowl, or in other words, a large bowl, but that said, it is much more advanced in terms of the features. A simple fishbowl doesn’t have filtration, lighting, or any of those other cool things, which this one does.

Remember that this particular tank is 4 gallons in size, so it does have enough room for a couple of fish and plants. It’s large enough for a few inhabitants, yet not so large that it’s going to take up an insane amount of space in your home.

In terms of materials, this tank is made out of acrylic plastic. Sure, some people might like glass tanks, but keep in mind that acrylic is way lighter than glass, and it’s much more impact resistant too, not to mention quite a bit clearer. This is definitely quite the durable fish tank, one that can survive newbies and children alike.

This tank comes complete with a super-efficient five stage filtration system. This includes mechanical, biological, and chemical filtration, as well as added water stabilization and oxygenation. This is a surprisingly great filter for such a small and affordable fish tank.

What you also get here is a long lasting and low voltage standard LED light. It’s not the best light in the world, particularly not for plant growth, but that said, it will illuminate your fish tank just fine. There is also the fact that this tank is designed to be extremely energy efficient.

What’s great here is that this light is an intelligent light. It automatically transitions from sunrise to daylight to sunset and then to night. Therefore, replicating the natural daylight cycle for your fish.

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biOrb Flow Aquarium

If what you want is a small yet elegant fish tank that comes in a variety of sizes, and comes with everything you need to get started, then this particular biOrb Flow Aquarium is a great one to consider. We do want to note that this is a rectangular aquarium, not a round one.

We do also want to say that we think this is a very elegant fish tank. Its simplistic nature looks great, especially if you put the right kind of plants, fish, and substrate on the inside.

Here you can choose from a four-gallon or an eight-gallon tank. If what you need is space efficiency, go for the smaller one.

But if you want to house a few more fish and plants, then you’re going to want to go for the larger tank. The smaller one comes in at 12 x 8 x 12.5 inches, and the larger one at 15.5 x 10.25 x 14.75 inches.

Yes, this is an acrylic fish tank, which is nice because it is impact-resistant and lightweight. Not to mention it is very clear. However, with that said, as is the case with acrylic, it’s not very scratch-resistant, so you do want to be careful when you are around it.

What’s really neat here is that there is an efficient five stage filtration system included, one that is built into a decorative rock. This means that this aquarium comes with everything you need, particularly in terms of filtration, yet it still looks very cool.

There is no visible filter, and you even get a nice little decorative rock. The five stages of filtration here include mechanical, biological, and chemical filtration, along with added water stabilization and extra oxygenation.

You also get the hood included with your tank, one that comes with a small LED light built right into it. Now, this LED light is nothing overly special, particularly not when it comes to the sustaining efficient plant growth.

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biOrb Cube 30 Aquarium

When it comes down to it, this is hands down by far the very best looking fish tank on the list today.

What you get here with the biOrb Cube 30 Aquarium is a clear cube that you can see into from all sides. This is unlike most other fish tanks that have an opaque backside. Being able to view the tank from 360 degrees is pretty darn cool no doubt. Even the lid of this aquarium is transparent.

What you might like here is that you can choose between an 8 gallon and a 16 gallon tank. The 8 gallon tank is better if you only have a limited amount of space, but that said, if you want to house as many fish and plants as possible, you do want to go for the 16 gallon tank.

In terms of the dimensions, the larger of the two tanks comes in at 15.7 x 15.7 x 17 inches. The cube shape of it allows for a good deal of space efficiency.

Yes, this tank is made out of acrylic plastic. Once again, acrylic plastic is very clear, it is super impact-resistant, and very lightweight too. The only problem with acrylic is of course that it is quite susceptible to scratching.

Just like with both of the tanks that we talked about above, what you get here is an efficient five-stage filtration system. It incorporates mechanical, biological, and chemical filtration into one system along with added water stabilization and oxygenation.

What’s great is that the filter cartridge used here is designed to fit all biOrb aquariums, and yes, the filter is contained within a decoration, so you don’t even know that it’s there. You also get that same basic LED light included here.

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Are biOrb Fish Tanks Any Good?

Yes, this brand is very popular and trusted. They are known for making high-quality fish tanks that look great and are affordable. It’s one of the most highly recommended fishkeeping brands out there.

Why do My Fish Keep Dying in My biOrb?

No matter what kind or brand of fish tank you have, there are a variety of reasons why your fish might die.

There are a number of reasons your fish could be dying. Could be due to a lack of food, not having the right food, and not having the right water temperature.

Other issues could be having dirty water. If the water doesn’t have the right acidity level, and so on and so forth. There are literally dozens of reasons why your fish might be dying.

How Often Should You Clean Your biOrb?

Fish tanks should be cleaned at least once per week.


The number one best biOrb fish tank on the list today is the biOrb Cube 30 Aquarium. Quite simply, it’s the biggest and the best. That said, we think that all of the biOrbs we looked at today are perfectly fine aquariums to consider.