What do oscar fish like in their tank?

Oscar fish like a variety of toys and decorations in their tank, including:

To keep your oscar fish safe and healthy, make sure all toys and decorations have no sharp edges. Also, avoid small toys, as your oscar fish might attempt to swallow them.

Lastly, be sure to clean everything with cool running water before setting them in the tank. Avoid using soap to clean them, as the residue is toxic for fish.