What I can add with a royal gramma

[nterry]

Hi,

I have an established Royal Gramma in my 120. Unfortunately, it's generally harrassed to hiding (starvation) all the other peaceful fish I've tried to add to the tank (firefish even an orchid dottyback). I recently added a yellow tang to the tank and the gramma (surprising to me) left it alone. However, I'm looking for a new addition that the royal gramma won't bother, but won' bother the other tank inhabitants:

pearly jawfish (2)
chromis (2)
chalk bass
coral beauty angel
mandarin
yellow tang

thanks