My platies always have what seem to be ich. The thing is, I keep the water temperature at around 83 degrees when I notice it and the water parameters are perfectly fine. Also, it's only one platy at a time who gets it, and they usually die a few days after treatment. This has happened twice, and the platies died, and now it's happening to my adult female. The tetras don't get it, the platy fry don't get it, the cory's don't get it. Just the adults.
Well, anyways she has white spots all over her. They look like grains of salt, except the look a bit fuzzy. I can't get a picture sadly. Does this sound like ich, or another disease like columnaris? I have a small little 1 gallon tank that I kept a platy fry with dropsy (he is 100% healthy now) for awhile. I can keep her in there for awhile if needed.
My platy male on the other hand is looking quite nice and so are all those fry. They all grew up so fast and I'm looking for a place to keep them all other than the 20 gallon tank. 11 fry (6 more on the way) two adult platies and some neon tetras and corys are just way to much for the tank. I can't keep up with all the water changes.