ok, so my females guppies were all looking pretty fat for a few weeks so i decided to put them in the QT tank. they have been hanging out up top and hiding alot more than they did in the bigger tank, but i just thought that it may mean that they are ready to pop any minute!!. well today, i netted then up against the glass a little to get a good look at the, and one of them looks horrible(has been the fattest for the longest)her fins look like she has been fighting, but the rest of her body looks like it is loosing scales. this really looks horible and i want to save her. i put some medicine in today, but will that help, and will it cause them to loose the babies? i also have swordtail babies in the same tank, will it kill them???