I can't tell if this is sarcasm or not...MrBryan723 said:You can keep an oscar in a 1 gallon bowl. The question is should you? I don't see why not. You could probably keep a few with no ill effects. They would love a live plant or 2 and maybe an air stone, but would probably do fine without one. They're pretty clean and have a low bioload and don't need much.