Hi All,
I have a 90L tank, with the following:
4 x Platy
1 x Pleco (although this is going back to the LFS as it's grown to about 4")
3 x Cory
2 x Bolivian Ram
6 x Neon Tetras
1 x Male Betta
I am doing 30% water changes once a week and the levels all look fine, but some of the platys and...