Best Self-Cleaning Fish Tanks

Most Comprehensive

A self-cleaning tank that uses biological and physical filtration to keep your water clear and your fish happy.

Several layers of cotton filters remove impurities for improved fish health and to reduce odors. Kit has all you need to get started with a pump, an LED and cover, a filter and instructions. Use the app to adjust LED colors for a dramatic display. Small fish such as bettas, angelfish and goldfish will swim happily in this tank.

360 Aquarium with LED Light

Replacement filters are hard to find. Same say tank holds less than the 4 to 5 gallons claimed.

Best Bang for the Buck

Oltraman

Simple Yet Solid

A cute, cylindrical self-cleaning aquarium set that's a great starter kit for betta fish and more.

This compact aquarium uses gravity to create enough hydraulic pressure to flush out dirty water. The 1-gallon tank is made of impact-resistant plastic and looks great from any angle. An LED illuminates the tank in seven colors. Kit includes artificial plants, pebbles, a filter and a cover for the tank.

Self-Cleaning Small Aquarium Starter Kit

Some say self-cleaning process doesn't work well. Top isn't very secure.

TARARIUM

Best for Beginners

A versatile self-cleaning 5-gallon aquarium that your bettas will enjoy inhabiting.

A quiet filter system pulls water from the tank bottom and removes impurities. Each cotton filter lasts for from four to eight weeks. You can adjust the brightness and the color of the tank light. Bettas in particular like this aquarium but shrimp and small species of fish will also enjoy it.

Multifunction Self-Cleaning Fish Tank

Tank is not glass. A few users say kit's filter isn't strong enough to do a thorough cleaning.

AQQA

Most Colorful

A self-cleaning mini aquarium starter set for fish fans with limited space.

Aquarium's filtration system is concealed inside the side of the tank. Holds 1.8 gallons with an LED lid that offers nine lighting modes. Bettas, guppies and other small fish can thrive in this little aquarium. Tank also has an aromatherapy diffuser so you can enjoy a pleasant fragrance as you admire your finny friends.

Self-Cleaning Glass Nano Aquarium Kit

Filter works, but doesn’t have the power to reliably clean the whole tank.

COOSPIDER

Easiest to Use

A small self-cleaning aquarium that holds two gallons of water and is made of glass and plastic.

The cover of the aquarium is plastic but the rest of the tank is made of glass. Aquarium's rounded edges show off your fish in all of their piscine glory. This kit’s filter system runs quietly. An LED offers three lighting options. The little tank measures 6.5 x 3 x 6.2 inches.