clowns get 20 inches, and reallyshould be in somethign like a 125 or bigger
another good reccomendation, IMO for color and size, and would fit in wiht aggressiveness i would think maybe a mroon clown(or even a pair, maybe), or some type of puffer, but the puffers being fin nippers, may be a prob with the lion
oh, and rfor the clean up crew, with a lion and an eel is gonna be pretty difficult to match, most of them would be eaten, and with a trigger, there definitely wouuuld be more of a prob, but you could try some larger crabs, like a halloween hermit or larger emeralds if you want, and with a trigger, they would most likely eat them anyhow, they have no probs with shells and larger crabs