Angel*Fish
cats and large squashes
If your fish is eating you can soak dried brine shrimp in an antibiotic (like Maracyn) and/or something like prazipro for parasites and it feed it directly to the sick fish (iow feed everybody else and then spot feed the sick one with a straw or pipette) and it's such a small amount that it's not going to affect your reef.
However I don't know what wrong with him -- are you posting in the fish disease treatment forum?
However I don't know what wrong with him -- are you posting in the fish disease treatment forum?