Holy overstocking Batman! 8O
The general rule in FW
is 1" of adult fish per gallon. That rule is reserved usually for just smaller fish. Larger fish need more room. The example I see here a lot is the 10" (or even a little more) of guppies may do fine in a 10 gal
, but you'd never want to put a 10" oscar in there.
I think the bioload in her 10 gal
is probably what is causing the problems. She needs some testing kits! Is she a good friend? Christmas is coming... 8)