I've been trying to treat my oscar for days and I don't know if it's working. I've done a HUGE water change ( more than half the water ) and I got some metronidazole for my oscar . I got the metro from a local store, I followed the directions and I don't think it's taking any effect. I'm really worried cause I don't want it to get worse. So far there is only pitting on the part of his lateral line near his tail and 1 mark ( not that big ) on the side of his head. Is that really bad ? Also how long does it usually take for these things to heal, I heard it leaves scars I don't mind much. Any amount of help would be useful . Also his appetite has been really off .



