Oscar fish like a variety of toys and decorations in their tank, including:
- Smooth sand or gravel
- Floating logs
- Ping pong balls
- Moss balls
- Waterwheels
- Floating tubes
- Silk aquarium plants
- Live plants, such as wisteria, Java fern, Java moss, and marimo moss balls
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.