1 of my mollies had mouth fungus and the other cloudy eye, so i put them both in a seperate compartment but took out the divider thinking they would be alright, i went up to my room just a minute ago and one has bullied the other, he was floating upside down but still trying to swim, ive taken him out now and put him in another seperate tank, added a tiny bit of salt, some stress coat and melafix....will he be alright in the tank, its got no heater or filter becos its not big enuf, the temp should stay the same but is there anything else i can do?!! im worried he's going to die now...