The Threadfin Butterflyfish is one of the more popular and readily available butterflyfish. Generally a hardy species, in the wild it is found on inner and outer reef slopes. As with many fish, the Threadfin Butterfly's colour and markings can vary with the region of origin.
Red Sea specimens tend to lose the eyespot (false eye to confuse predators) on the dorsal fin.
The Threadfin Butterflyfish can be quite shy and should be provided multiple hiding places. This species of Butterflyfish is not reef safe. It should be kept in a live rock-only tank, although it will pick at the rock. It can be employed to clear away Aiptasia however they will also eat ornamental crustacea and anemones.
The Threadfin Butterflyfish's diet should consist of meaty items such as fish, crustaceans, mysis shrimp, and frozen marine foods.