My black Molly (daddy molly) has developed a couple white cotton wool like spots on him. I asked for the best treatment from the aquatic shop which cost me a fortune. It says to treat for 3 days in a row and then again on day 6. So we have done the 3 days, today is the first day without treatment and he doesn't look any better. Last week he was swimming vertacly so i followed istructions to treat for swim bladder (was told to feed him peas and up the temp slightly) which seemd to work. He now seems happy other than these spots. I did have a problem with the heater, yesterday i noticed it was not keeping up to temp but now i have put in another heater and temp is back to normal. I have tested the water and all seems ok, have been doing water changes. My other mollys dont look that great either, 2 are swimming near the surface, all the guppies seem fine other than my old 2 which are reaching the end of their lives.
Do i treat the tank again if the Molly still has white spots after day 6? do i try a different treatment?