Squirrel fish

The ideal aquarium for these fish includes a larger sized aquarium (over 70 gallons), plenty of rockwork and overhangs, and a well-sealed lid. Introduce Squirrelfish to the aquarium simultaneously to limit aggression toward one particular fish. They only will reach a size of around five inches in captivity and they do better when maintained in a small group. Their diet includes small fish, plankton, and other invertebrates.