Originally Posted by KrisFL
Is 55 or 75 bigg enough for the copperbanded?
Copperbands can get up to 8" so I would think that the 75 would be more appropriate but you may get away with a 55 depending on the rest of the inhabitants and the bio-load produced. They are fast swimmers and like room to move so you need to cognizant of that in your aquascaping. Also good to know before investing in one:
Identification: While this popular species can do well when their requirements are met, they are somewhat fragile ande do not tolerate careless handling . They require excellent water quality and exceptionally peaceful tankmates. With this in mind, you may want to consider another butterfly if you're squeamish about the possibility of losing a fish. Also note, small specimens are much more delicate than medium or larger specimens. The Copperband is often used to rid reef aquariums of Aiptasia anemones. Most individuals can be kept in a reef tank with most soft corals and small-polyped stony corals, although some may nip at large-polyped stony corals, certain soft corals (including xeniids and clavulariids) and zoanthids.
Minimum tank size: 75 Gallon
Feeding and diet: Omnivore. Offer a varied diet including crustacean flesh, mysid shrimp and frozen preparations.
Reef Compatibility: The Copperband is often used to rid reef aquariums of Aiptasia anemones. Most individuals can be kept in a reef tank with most soft corals and small-polyped stony corals, although some may nip at large-polyped stony corals, certain soft corals (including xeniids and clavulariids) and zoanthids. As a rule it is generally safe, but nothing is 100%