i have a 20 gallon female betta sorority tank that has had the females in it since 1-31-11. the tank itself has been up since like august so its pretty mature. i added all 7 fish at the same time so im wondering how long should i wait until i add more fish. also i was wondering what kinda of fish i could add. im thinking of some kinda bottom feeder and some kinda schooling fish.
thanks,
JOMA
thanks,
JOMA