what should I do with my watchman gobie?

well maybe.. I have a few fish in my dt I have 2 clown fish, a sailfin tang, 3 blue green Chromis, half black angel, and a naso tang which is about 6".. I have a pistol shrimp but they haven't seemed to pair up I donno why. The watchman goby that we are talking about here is a yellow prawn goby which is about 1" or 1" 1/2 long.. Ok I guess ill put him back in the dt.. thanx all for your great suggestions.