I have recently been loosing a lot of the invertibrates in my 120 gallon set-up. I went through the usual routine of water testing, changing, setting traps, and night watches to no avail. I had also noticed that a lot of my decor like rocks and large shells would 'migrate around the tank'. A few days ago my anemone ended up upside down and buried. I did another night watch and was shining a light into a hole in my rock when what I could only fig was a ceph do to the eyes and general look poked its 'head' into veiw. I realized I had seen him before in this hole but because i had never seen him move and his camo had mistaken it for part of the rock. I'm I right in my guess that it is a nocturnal ceph? I'm sorry I have never seen him entirly which i know makes it difficult. Also I know the traditional fish and shrimp traps are not working any suggestions on luring it out so I can remove him, I have small fish.