Hi everyone, i just got 2 new firemouths 4 days ago. They are only 2 inches long. The next day, One of them was chasing the other one around the entire tank and aggressively biting at it. So i removed the one being bullied and put it in a 65l tank for now. The aggressive firemouth is now alone in a 225l tank apart from some BN's. Today i saw the aggressive one attacking its reflection in the glass, is this normal behaviour?