It's 14 gallon tank it's been set up for about 6 months now I have 4 mollies 3 gubbies 1 pelco 2 angle fish 2 gourami. Yeah I have water tests and water is really good
I brought 5 mollies about a week a go and this one seems alot bigger than the rest. She has started hiding and being aggressive towards all the fishes that go near her. Also pooing so much more then the rest. Please help....