Harlequin Rasbora

The harlequin rasbora is the most common and hardiest rasbora available to the aquarium trade. Harlequin rasboras eat flake food, get along with nearly every species and grow large enough to keep in a larger community fish tank. The red and black colors get bolder and bolder as the rasbora ages.

Quick Facts

Care Guide

Tank setup: Give them plants along the back and sides, open swimming space in front and a dark substrate. Soft, slightly acidic water and gentle filtration bring out their best color.

Feeding: Feed a quality flake or small pellet once or twice a day, only as much as they eat in a couple of minutes. They also enjoy frozen foods like bloodworms and brine shrimp.

Tankmates: They get along with most peaceful community fish of similar size, such as tetras, other rasboras, danios, corydoras, gouramis and dwarf shrimp. Avoid large predatory fish that could eat them.

Good to know: In a well-planted tank a school of rasboras swims together in the middle of the tank, and their colors deepen as they settle in.