Hi. I just woke up and saw my guppy with white fuzzy thing on its head, that to me looked like fungus. I Separated her and medicated with methylene blue and salt. Fortunately she is eating, and she seems just fine. Does anyone think the methylene blue and salt will cure it. Oh and I do not know if it is fungal infection. But there is white fuzzy stuff on her head and just a small red dot in the fuzzy area.