Provided the other community fish are also large cichlids and the tank is a very large one (at least 8 foot x 2 foot x 2 foot) they will be OK. Only an idiot would consider placing an Oscar in with small fish.
I think what you are referring to are fish who can survive in an aquarium without harming other fish. Goldfish and guppies are a couple.
communtiy is like a business
Tom Hanks.
The Urban counts chickens and the Rural don't.
West Side Story
you can put a put a clown fish or a angel fish but you have to have a lage a place to hold the fish because angel fish a a little territorial
put a fish in a can
population is manything
jamaica a lovely communtiy
Yes, it is bad to put tropical fish in with river fish. The river fish can make the tropical fish sick.
# Get a apple # put the apple on top of the fish # put the fish in a net # fling the net causing the fish to jump
no it wont but u cant put a dead fish in