Just throwing out a bone here, is it possible that something else might be irritating him or picking on him? Another fish, an aggressive invert, stinging coral, new supplement/food or additive...something along those lines? It seems odd to me that a parasite would only effect one fish, after QT and various treatments, with no other symptoms...
@Humblefish is it possible for fish to have reactions to certain foods or additives...like an allergy? I'm purely curious at this point [emoji23]
@Humblefish is it possible for fish to have reactions to certain foods or additives...like an allergy? I'm purely curious at this point [emoji23]
