I have a blue devil in a tank I wan't to drain and put away. My reef tank has fire fish, chromis, a clown, gobies, cleaner shrimps. I will get more tiny passive fish. But I have this blue devil in a tank that I would like to keep if I can but don't want it to attack other fish. At 1 inch long its passive now. Should I give it back to the fish store or put it in my reef community tank with the other fish? Once the blue devil goes in, it will never come out with all my live rock. What do you think I should do? Thanks.