Do not buy a bumble bee grouper. It will inevitably outgrow that tank by a long shot, and will eat your epaulette and eels. Two other guys here with shark tanks bought bumble bee groupers, only to have them eat their favored sharks - including a 7-gill and a whitetip (or a lemon, I can't recall).
There are plenty of other attractive groupers - miniatus is beautiful. As for eels, you'll have to be careful - tessies and greens are gorgeous, but can be savage.