I don't know if I can add much to Tony's missive, but try I must. I recently bought a Centropyge heraldi from our local Big Al's. I did that because for $25.00 I could afford to try it, whereas for the $50.00 the other stores would charge I could not. The problem was that the fish would not eat, so it died. As Tony says low salinity is no problem. It is murder on inverts though, so parasites literally blow up. But most certainly other inverts that you might want to keep need very careful acclimation.
