Hi, I've got a yellow clown goby and have recently introduced some Acropora frags. This goby by its nature spends most of his time in the branches. Since I've only got a few Acros and they are small the goby manages to keep their polyps retracted by making the rounds. Is this a problem for the health of the Acros? LFS says no but I'm not fully convinced. Thanks for any advice.
Matt
Matt