I just got two maroon clowns and the person we bought them for supposedly said they were a pair but when i put them in my tank they started to fight i know its normal for clowns to fight but after the fighting ended and the smaller clown lost he now hides up on the corner of my tank and the bigger one chases him away and tries to bite him I'm not sure what this is as I am new to the saltwater aquarium hobby I would very much appreciate some help on this.