Yellow Clown Gobies question

[dekay]

Looking into getting a yellow clown goby as my next fish. Been doing some reading and most of them say they prefer tanks with acropora. But then when I visited a LFS, the owner/friend said that they're easy to keep, and they don't need acros to feel at home. As a matter of fact, he would prefer not to pair the two things together cuz they have a tendency to nip on the polyps. If any one of you have experience with this fish, please give me your input, cuz I went to Big Als yesterday to look at their reef setup which had this fish. The goby didn't move any more than 2 inches away from the acro he was in, albeit, it might have to do with the residence in the tank (black tang, six line wrasse, damsels etc.).

Another thing is, my tank is still relatively young, so I'm not going to put SPS corals in there anyways. Would a bleached dead acro do the job (the ornament type)? Or do I even need one?