IT all depends on the size of the tank. For one you dont want to overload your BioLoad, Second you shouldnt be adding new clowns if you already have an existing maroon clown. Im sure he has his territory and he aint about to share with no one that looks similar to him. I would say that would be straight mayhem as soon as they are dropped in. Unless you have like a 150 gallon tank then i would say Maybe. Ud prolly still have fighting but there would be enough room and hide outs depending on scenary for them to live. Not comfortable though.