A nano aquarium is typically defined as any tank under 10 gallons. They’re perfect for Betta fish, small groups of schooling fish, neocaridina shrimp, and ornamental snails. These are small aquariums that don’t require a lot of space, making them ideal for desktops, apartments, or anyone looking to create an aquascape with limited space.

Why Choose a Nano Tank?

Nano tanks are often easier to set up, start, and maintain—making them a great entry point into the hobby. Their compact size means everything else needed scales down too: filters, substrate, hardscape, aquatic plants. Smaller tank, smaller tab. That alone gives nanos a unique edge. If you've ever been curious about planted tanks, a nano setup is a low-commitment way to get started without feeling overwhelmed. But, don't let the size fool you! A properly maintained nano aquascape can be just as impressive as a larger 20 or 30-gallon planted aquarium. The learning curve (and the risk) is simply more comfortable.

Nano tanks are also perfect for apartments, desktops, and tight spots where larger sizes just aren't practical. They give you the flexibility to experiment, tweak, and create dynamic scapes all the same. Ultum Nature Systems (UNS) rimless nano aquariums are recognized as a leading choice! Crafted with low-iron, ultra-clear glass, they offer crystal-clear visibility and make awesome first aquariums or solid additions to existing collections.

What Type of Fish Can I Keep in a Nano Aquarium?

This type of aquarium is commonly home to Betta Fish, shrimp, and other small tropical fish species.

Examples of Aquascapes and Nano Planted Tanks

Planted Betta Fish Tank in the UNS 3N
Nano Iwagumi Aquascape in the UNS 5N
Nature Style Aquascape with Red Plants in the UNS 5N