Difficulty: Intermediate
Temperament: Semi-Aggressive
Adult Full Size: 6"
Minimum Tank Size: 55 gallons
Reef Safe: No
Description:  This is a very hardy species of Butterflyfish, and is used nowadays to eat Aiptasia which makes it a very popular fish, and a great addition to any FOWLR tank. Caution should be taken as a butterfly can and will eat coral. Kleinis are seen as a planktivorous species, and is considered a moderately reef-safe fish. It may have a black or black-and-blue eye band.