Goby question

[Angelajean]

As you may have seen by my previous post. My yellow watchman goby and my 6 line wrasse are not getting along. Do you have an idea of another goby that might get along with the wrasse better?
My friend that works at Petco says the big diamond watchman can be mean as hell.???

 

[AdamC]

I think the diamond should be fine. Is the yellow a small one? I have a six line and just added a yellow. My tank is a 75. He doesn't harass as I have enough rock work and I think he's paired up with my pistol shrimp. Then again I haven't seen my six line ever pick on anyhting