Hi everyone! I used to have a pair of guppies in a 15 gal tank. Well the female got sick after giving birth but I wasnt sure what disease it was. Well the symptoms were that she couldnt float well like other fish would and she would stay on the bottom most of the time until I feed them where she would really try hard to reach the flakes then she would just drop to the bottom chewing them. Well it got worse and I panicked so I separated her to a small container. Then she died. I would like to know what it was and is there anything I could do to cure it if it were to happen to my male guppy and thier babies?