I have two female platys in a 5 gallon tank, heated, filtered, salted...all the luxuries. Lately, the bigger of the two has been hiding a lot, and whenever I come near the tank she completely, for lack of a better word, wigs out. Swimming really frantically all over the place, almost jumping out of the water, that kind of stuff. My other smaller one has seemed normal until the past few days when she started hiding as well. Both of their dorsal fins are clamped to their bodies and their tail fins aren't fanned out as usual. The bigger of the two already has some reddish/orange on her, as she's a sunburst, but it looks like there might be some more blotchy red spots appearing; she already has a big belly so I'm not sure if that has swollen at all, maybe a little and it almost looks as though her spine is curved. Neither of them are eating at all. Right now I'm treating the tank for an internal infection such as dropsy, I started the treatment yesterday so maybe it's too soon to tell but I really have no idea what I'm dealing with. Any input, ideas or help would be much, much appreciated!!