Most butterflies, copperband inclued, will not readily accept prepared foods and just end up starving to death. If you happen to find one that is actually eating something other then just frozen brine at the LFS
you may be in luck. I recommend sourcing one out from Australia rather then the Indio as they tend to have better survival rates. It will cost more money however. They also seem to do well if you have a lot of LR
in your tank so they can graze on pods
and algae. I would wait on the copperband and go for the coral beauty first.