talbot's damsels

I have a 20g with a talbot damsel who I think is maturing and turning out to be an butt (yes I know who woulda thunk). It’s starting to kind of target my bar goby when it’s swimming near his rocks. I was wondering if there’s a fish I could add to disperse the aggression perhaps like a royal...

Note: I will not ship these fish. I am only willing to meet within ~30 minutes driving of Winston-Salem, NC. Fish are free, so I'd prefer to do closer to my home. Exchange will likely be on a weekend. Before you decide to grab these fish here are some things that were not clear when I first...