I have a coral beauty that ive had for quite a while and he doesnt go for the greens at all.... he will eat anything meaty (ie mysis, brine, prime reef, formula 1, and frozen food...)
Well I dont think that they would have given you a credit for the eaten pistol. I mean logically it isnt their fault your goby ate the shrimp. I do know where you are coming from with the relationship part of it. Naturally they should get along and not eat each other. Hopefully you have better...