Banded Leporinus have killed cichlids before. I had to rehome them after killing African and CA cichlids.Arowana and oscars sound like decent tankmates. Large and robust. But as previously stated, they can get kinda nippy as they get larger. Largely depends on the individual fish. You may never have any problems.
May i ask what fish is in your profilepicture?Banded Leporinus have killed cichlids before. I had to rehome them after killing African and CA cichlids.