I have a guppy that is fuzzy. I do not know if i should put her back in the tank. I do not have a sick tank. Just a 1g Bowl with no light or any thing.I am not sure if she will get the others sick. If she is sick?!!She does not have tail or fin rot, but her scales are looking like they are fuzzy.She has no white spots on her. What can it be? How can i fix it?Any meds?