10 Awesome Nano Aquariums For Freshwater and Saltwater Tanks

Nano aquariums make it easy to place a saltwater, reef, or freshwater aquarium where space is limited. Any fish tank that holds 30 gallons or less water can be considered a nano fish tank. Here are the best nano aquariums:

Coralife Nano Aquarium Starter Kit

This Coralife BioCube Starter Kit is a sleek, well-designed nano aquarium with both front and side viewing angles. The BioCube kit includes an integrated programmable LED lighting system.

Coralife Nano Aquarium Starter Kit

Fluval Flex Nano Aquarium

The Fluval Flex is a good choice for keeping freshwater fish. It comes equipped with a 3-stage filtration system. However, it does not have its own heater.

The large sponge filter has 2 pockets in which you can put anything you want. There’s a bag of ceramic media and carbon to start you off.

Fluval Flex Nano Aquarium

Tetra 20 Gallon Nano Fish Tank Kit

The Tetra 20 Gallon Nano Fish Tank is ideal if you’re looking to create a traditional freshwater aquarium. It has all the extras needed to get you started: one 20 Gallon Glass Aquarium, one LED hood, one Tetra Mini UL Heater, one Tetra Whisper 20 Filter, one artificial Boxwood Plant Mat, four artificial plants.

Tetra 20 Gallon Complete Aquarium Kit w/ filter heater LED & plants

Marineland 5 Gallon Portrait Aquarium Kit

The Marineland portrait aquarium kit has its own filtration and an LED lighting system. The lighting can be switched between natural daylight and moonlight settings.

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MarineLand 5 Gallon Portrait Glass LED Aquarium Kit

Red Sea Max Nano Aquarium

The Red Sea Max features some of the latest technology and a quality build. It has a beautiful design and it is perfect for a reef show tank.

It has its own fully customizable LED light system that you can control over your WiFi network. A filtration and circulation system., An automatic top-off unit with a built-in reservoir.

The only drawback is the price. However, given the premium build and items included, some might say that it’s worth it.

Red Sea Max Nano Aquarium, 20 Gallon

Fluval Edge Aquarium

The Fluval Edge aquarium has a powerful, easy to use Edge filter with Cycleguard. The kit includes both Nutrafin Cycle and Nutrafin Aquaplus water treatments.

The LED Lighting, Filtration & Wiring is easily hidden away in the decorative column. The lighting system has an on/off, bright daytime, and deep blue nighttime setting.

Fluval Edge Aquarium

Fluval SEA EVO XII Aquarium Kit

The Fluval Sea EVO XII is a 13.5-gallon glass aquarium that has a cover. It includes a fully integrated LED lighting system, a safe, low-voltage transformer, a circulation pump with an output nozzle and a foam filter block with a handle.

Fluval SEA EVO XII Aquarium Kit

Fluval Spec III Aquarium Kit

The Fluval Spec III nano aquarium kit features an impressive high-output LED light system which generates 20% brighter lighting. It has its own built-in filtration that uses a 3-stage system with oversized mechanical, chemical and biological media for exceptional water clarity.

Fluval Spec III Aquarium Kit

SeaClear Acrylic Aquarium Combo Set

The SeaClear Acrylic Aquarium Combo Set has a high-gloss look but it lacks extras included with other nano fish tanks on the list. The build quality, however, is on par with the others.

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It’s safe for use as both freshwater and saltwater nano tanks. The drawback, of course, is that you’ll have to buy better lighting, a filter, etc. separately.

SeaClear Acrylic Aquarium Combo Set

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