Hi all, im new to fish keeping and really want to succeed in keeping healthy gorgeous tropical fish. In my tank i have 2 platys a dwarf gourami 2 danios and a plec. Ive had them all for over 2 months and about a month ago my two platys and 1 gold danio got quite fat. The danio unfortunately has swim bladder issues and is currently being treated for that. I assumed the platys were the same so put them in the tank with the danio. The danio is yet to recover (not looking good) but the platys seem fine.(they never went funny just fat) They swim eat and poop a hell of alot which made me think they were fat so i fasted them for 2 days fed them on 3rd day and fasted them again for 2 more days....no change in size so im left thinking its pregnant but im sure i have 2 females and if they were bought pregnant surley they would of spawned by now (its been over 2months since i bought them) they were also treated for internal parasites/bacterial infection when first bought as they were acting really strange not eating or swimming just sitting near heater at water surface really lathargic and almost transparent. Sorry this is like an essay im new to all this and just wanna help my poor fishies. (p.s how do you add photos)