that's what was throwing me off. There may be two problems. One is def HITH.Piscineidiot;2524451; said:It's odd, the line of damage across the top of the fish doesn't appear anywhere near the lateral line?
You need to hit them with some anti-parasite med(s), like PraziPro a/o Jungle Hole N Head (or something else with Metronidazole). It would be best if you could quarantine them in a smaller tank.