My LFS have offered me a copper. The copper is eating bits of mysis but that’s it. They are holding it still and have it in their QT which has been there for two weeks and a half. It has a SOLD but only for a week. So how can I “train” it to eat. What can I expect out of it in a reef tank? Is it too hard to care for? It’s a baby and would love to add it to my tank! Anybody have experience with them. Thank you