I noticed three white spots on my brown bullhead's dorsal fin about one week ago. I immediatly raised the temp and dosed with Quick Cure for three days. He has not gotten anymore of these spots/cysts, but now one week later i can still see the three spots, although they have decreased a bit in size. Is it cured, and it just takes a while for the spots to go away? or do i still have ick. P.S. The bullhead is the only fish in the tank.