I made the rookie mistake of taking a fish from a friend and not looking it up first. I added the clown goby and the next day's all of my sps coral where closed I started to panic and did a small water change but it seemed nothing I did helped so I woke at 1.00 am and got the flashlight and I saw the goby picking on the coral. Well 4 hours later and removing a lot of rock he out. This was a hard lesson learned. I am not sure my rainbow milli will recover.