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10 Best Rimless Nano Fish Tanks – Reviews & Top Picks

Smaller than 5–10 gallon tanks, nano aquariums may be a lot of fun, even if they have restrictions on what you can keep in them.

Using a rimless tank is one method to make a nano aquarium appear larger and more put together. Traditional tanks feature a bulky rim; rimless tanks have not.

As a result, they have more open lines and a cleaner look. These nano best rimless nano fish tanks evaluations feature BestForPets (bestforpets.org) top picks.


All-around winner: Dennerle Shrimp King Shrimp Cube

  • Percentage of total volume: 2.5%
  • Does it have a light? No.
  • The following are some of the extras:The use of ultra-clear glass

It’s hard to beat the Dennerle Shrimp King Shrimp Cube as an all-around rimless nano fish aquarium. Using high-quality glass, this tank provides the greatest possible viewing experience.

It’s built to last with durable, thick, and high-quality materials. Make your viewing experience even more enjoyable thanks to the rounded corners. With a glass lid, you can ensure the safety of your fish and invertebrates.

Leveling mats are required for the safe operation of rimless tanks. A light or substrate aren’t included in this tank, so you’ll need to buy those separately if you want to get started with a nano tank.


  • The use of ultra-clear glass
  • Aesthetic excellence in design
  • A seamless effect is achieved by using curved corners.
  • A safety glass cover is included.
  • There is also a leveling pad included in the package.


  • Doesn’t come with any extras.

LED Cube Kit – Tetra LED Cube Kit is the best value

  • Three-gallon capacity
  • Has a light built in? : Yes
  • The following are some of the extras: The base was raised

Tetra LED Cube Kit is the greatest rimless tank for the money, according to experts. It has an LED light, a transparent top with a feeding hole, and a Tetra Whisper internal filter that can be disguised under décor.

To further emphasize its excellence, a raised pedestal base has been added to the design. The LED light produces strong, white illumination while using minimal power.

Your viewing experience will not be disrupted by the use of ultra-clear, shatterproof polycarbonate. This material is significantly more vulnerable to scratching than glass, so be careful when cleaning it. It is, however, quite light, weighing in at less than 7 pounds.


  • The most cost-effective option
  • Contains an energy-saving LED light with a filter inside for improved performance.
  • The feeding hole in the lid makes it simple to use.
  • A shatterproof, translucent plastic design
  • Lightweight


  • Plastic is prone to scratches.

Microvue 30 Aquarium Kit – Premium Choice by Cobalt Aquatics

  • An 8-gallon capacity
  • Has a light built in? : Yes
  • The following are some of the extras: Increase the amount of light.

This aquarium kit from Cobalt Aquatics is the best rimless nano fish tank on the market. In addition to the high-quality grow light, this package includes a cover that is practically indistinguishable from the tank’s top surface.

In addition, an internal filter and a leveling pad are included to keep your nano tank in good condition over the long term. Depending on your choices, it may be utilized in planted, marine, freshwater, or reef aquariums.

Transparent glass and clear sealant at the joints make it possible to see everything clearly. It’s worth noting, though, that this tank comes with a hefty price tag.


  • Indoor grow lights and a filter are included with the package
  • There is also a leveling pad included in the package.
  • Contains a lid that is almost imperceptible
  • Suitable for freshwater, marine, reef, and planted aquariums
  • Seams of crystal-clear glass are sealed with a transparent sealer.


  • It’s worth it

Aquarium with a Back Filter by Lifegard.

  • Capacity: 4.14 liters
  • Does it have a light? No.
  • The following are some of the extras: Setup for the back filter.

Among the more expensive nano aquariums, the Lifegard Crystal Aquarium with Back Filter stands out. Glass with precision-cut edges and transparent sealant at the joints make up this tank.

A submersible pump, filter media, top and bottom drains, an adjustable return fitting, and a bottom insulating pad are included in the concealed back filter. There’s no need to worry about obstructing the beauty of your tank because the rear filter is tucked away in the tank’s back wall.

light for planted tanks must be purchased separately, as this tank does not come with one. It may be used for marine, freshwater or reef aquariums.


  • Precision-cut edges and transparent seams make this crystal clear glass a pleasure to look at.
  • The rear filter isn’t seen from the front or side, thus it isn’t noticeable.
  • Setup instructions are included in the purchase price.
  • Flow direction may be altered to suit the demands of your tank.
  • Suitable for freshwater, marine, and reef aquariums.


  • It’s worth it
  • No light is included.

Kits for the Fluval Chi Aquarium

  • Three-gallon capacity
  • Has a light built in? : Yes
  • The following are some of the extras: The base of the pedestal has been elevated.

Hidden in the centre of the tank is a unique filtration system that does not detract from the tank’s overall beauty. It also comes with a built-in LED light for low-energy illumination.

An elegant pedestal foundation adds to the tank’s visual appeal. The filtration system simulates the sound and look of running water by creating a bubbling and gurgling effect.

In contrast to the tank’s glass, the supplied lid is made of plastic. The LED light is a submersible light that might promote the growth of algae. In order to turn off the light, you must also turn off the filtration system, which is cumbersome.


  • Filtration system with a twist
  • Has an LED light built in.
  • The base of the pedestal is built in.
  • The bubbling water noises and images are produced by the filtration system.


  • With a glass tank, the plastic lid may stick out.
  • LED lights are used underwater, which may foster the formation of algae.
  • To turn the light off, you must first switch off the filter.


To help you pick the ideal tank for your area, BestForPets (bestforpets.org) has reviewed some of our best rimless nano fish tanks. Nano tanks may add a touch of sophistication to any room, but there are certain restrictions on the creatures that can be maintained in them.

The Dennerle Shrimp King Shrimp Cube is the greatest overall rimless nano fish tank, which is a no-nonsense tank that doesn’t include supplies you won’t require but is built for both form and function. Tetra LED Cube Kit is a budget-friendly option that includes everything you need to start your tank.

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Dr. Barry Buttler

Dr. Barry Buttler, DVM, MS, DACVIM, is an experienced veterinarian who specializes in the care of small animals, specifically dogs. Dr. Barry K. Buttler is a member of the American Veterinary Medical Association and holds multiple certifications in small animal emergency medicine and geriatric pet health.

Veterinarian (DVM) Dr. Barry Buttler


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