But then what do I do with it he is supper mean even bites me.

Bake, boil or barbeque

Leah, how do you the chromis in your tank ?

Not sure what you are asking, but I am guessing... that you are asking how I like the Chromis in my tank. I really like them, true they are not as colorful as my other fish, but pretty in there own way.

no need to pant the back of the tank.

Is the back easily accessible? If yes, go to a signs store an buy yourself a piece of mylar and apply to the back.

I just bought a custom built cube from OBD and the back is black. They put a piece of mylar on the back. Looks really sharp!!