I finally got a good picture of my new octopus. Could someone please help me ID? He is about 7 inches long from tip of mantle to tip of arm. He seems to be out more in the night but he is starting to come out during the day. He is very shy. Once I caught him on the bottom sand and he quickly transformed to a piece of alge, complete with swaying with the water flow. I have (live) fiddlers, crayfish, snails and hermit crabs for him to eat. How much am I suppose to feed him in a day? Do I leave extra snails and hermit crabs in the tank?