Ballon Molly Died?

[Batzman]

I woke and he/she was dead everything was fine last night, ate normally, swiming around with no problems then got up turned the light on and was upsidedown dead? my water is fine and all my other fish are fine? is there something specific to looking after mollies?

 

[OldMan47]

The common aquarium mollies need hard water with a higher pH. Mine do great at 7.8 pH. I also do not overheat my tanks, I run them at 25C at the most and usually closer to 23C. Mollies also do better with a high vegetable content in their diet compared to the average flake food, it does them no good at all to feed them "high protein" foods that are typically low in vegetable protein.