The Saddleback Butterflyfish will do best in a 125 gallon or larger aquarium with plenty of swimming space and well-maintained water quality. It should not be kept with any of its species unless it is introduced to the aquarium as a male and female pair. The Saddleback Butterflyfish may be kept in a reef environment but will eat most stony corals, a few soft corals, and invertebrates that inhabit any live rock.
Its diet should include a variety of meaty preparations.
Source: Live Aquaria - Photo used as indicative only.