I am about to get some fish and I want a dwarf lionfish. I was wondering what I can put with them. I have a 55 gallon. These are the fish that I want. Can I do it. A lion, some kind of trigger, a grouper. and I was thinking of a clownfish (i think the one i saw was black and yellow maybe orange). would i be able to put and janitors in the tank with them. thanks