So I added this little guy to the tank about a week and half ago. Aside from the apparent need to make sure waste isn't building up in the tank should I be worrying about his behavior around the corals? He likes to perch on the rocks in between swims. He spends the daylight hours usually in one place perched on a rock but during the dusk hours he is swimming around hunting for pods. He will perch on corals for a short time as he moves around the tank. Do you think he will be able to stress the corals to a point of death? I would think fish perch on corals all the time in the wild but I have no experience with this.