I had an oscar before. What a dredfull experience that was. The fish came from hell and he showed it every single day.
Many stories about that fish. Eventually, I let him go in our pond at out old house. I was getting tired of him splashing gallons of water out of the tank everytime I walked by. Anytime you would come up the stairs to see the tank, he would turn toward your direction before finishing your trip up the stairs and start flaring his gills and jerking around. Looked like he was putting a spell on me or something.
I had to remove the front portion of the cover because at night he would always jump out of the water and hit it every 2 minutes. I think I set my self up for the splashing after that.