Okay I have two full grown adult Oscars around 2 years of age I have an albino and a tiger, the albino Oscar as of late has been showing extreme aggression toward my tiger keeping it hemmed in the corner picking on it day and night the water is good I do 2 50% water changes every week. All the levels are good I'm feeding them pellets along with bloodworms shrimp and earthworms so their diet is great. Does anyone have any ideas how to stop the aggression before I lose one of my Oscars.