I bought a small yellow tang and a few anthias a couple of days ago and put them in a quarantine tank. Unfortunately the yellow tang does not seem to want eat. I've put nori on clips, rubberbanded to rocks, soaked in garlic but i'm not sure what to do now. Occasionally he'll take a small piece of mysis or nori that breaks off and floats in the water column but his belly is sinking in. Any tips would be helpful.