This variety of Anthias does best in an aquarium with low, indirect lighting or its brilliant colors will fade. Although preferring to remain at the mid-tank level, they have been found at depths up to 600 feet in the wild. A 25 gallon tank will suffice for one fish, however, if keeping a group, a 125 gallon tank should be used since the Squareback Anthias appreciates plenty of room to swim.