The lions are fairly easy and unless the others can fit in it's mouth, he won't bother anyone. The bigger question is the "pair" of maroon clowns. Maroons are notorious for being aggressive, and they aren't like other clowns in the pairing department. You have to buy a known mated pair or you will probably have murder in your tank. Lions like live food but can be trained to eat other foods if you have the patience for it. We had one and they are actually fairly good in the behaviour department. They are even said to be reef safe except for their habit of eating smaller fish.
