Shrimp/Goby Unpair?

[OnePuffMan]

I moved my tiger pistol and yellow watchman goby from the 30 gallon quarantine to my 150 display. In QT, the had the full bonding behavior, but they are no longer even "roommates" and the goby has one back to its initial "lonely" behavior. I caught them and put them in the tank together, so I'm confused as to what happened. Any ideas regarding what happened or thoughts on how to rekindle their bond?

Edit: I just got him in a net and dropped him off at the mouth of the tunnel. I noticed his dorsal fins were damaged. Would the pistol do that to him? His tankmates are 2 clowns, 3 PJ cardinals, 1 foxface, 1 skunk shrimp, 3 peppermint, and snails.

 

[blaxsun]

I don't think the pistol would necessarily do that, no. The clowns would be my primary suspects...