I like the royal gramma as well however they can be a little territorial.
I personally dislike the chromis...... Wicked little buggers once they get established
My Royal Gramma OPENS his mouth REAL WIDE if he feels threatened by any of the other fish (I love seeing him trying to bluff them!) but he/she (don't know which his is, LOL!) never chases any others around the tank.
My Cherub Angel is my sometimes little devil :angel4::angel4: but he hasn't killed anyone yet either
So Bryan...What fish would you suggest?