Last night my 7" Red Tiger Oscar (pictured in Avatar Pic) decided to take a very rapid trip out oh my 135g community tank and see what the floor in my room feels like (maybe one of the other fish made him mad lol) Anyhow, the lesson learned is: Even if you take the precautions to have a heavy lid on your tank, they can still jump out when you open to feed. Bad situation, he lost a lot of his slime coat and scales, and ripped his dorsal fin pretty badly, but I'm happy to say its been about 24hrs and he seems to be just fine 