Corals are ok and the anemone is doing good. He's been in there about 2 weeks but is eating once a week. Crab and arrow crab are good and so are the hermit crabs and most other snails.Sounds like something definitely got into the system when you added the anthias. If I understand this, all other fish had been with you for at least a month and you added the anthias directly after drip acclimation from a lfs. Did the fish do any type of qt?
Corals and other inverts okay?