Can you put an ocsar fish with communtiy?

It depends. Oscar fish can be aggressive and territorial especially if they are large enough to consume smaller fish. They may attempt to eat fish of a similar size or that exhibit bright patterns. As a result, a minimum tank of 100 gallons is recommended.

To be on the safe side, make sure to do your research and only add Oscar fish to a community tank if you are confident that the environment will be safe and the oscar will have enough space and food.