About 10 days ago I picked up an octopus. I am not sure what species it is. The LFS was unable to tell me much other than it was gathered from the Florida Keys/Caribbean. This is the first time this store has not been able to nail down a item in their store in the years I have been going there. I was quite disappointed in that they gave me the "brown" or "common" reference. It is a brownish color with some lighter colored marbling. Its bell is about peach sized with 8-10 arms. I will add some photos when I get a couple of good pics of him. Neverthless, I feel confident in my ability to raise it. Currently I have 4 marine tanks with Lionfish, Zebra Eels, Goldentail Eeels and more. I love the more exotic fish/inverts. I have the octopus in an established 46 gal corner tank with tons of filtration and an oversized protein skimmer. So far the octopus hides much of the day. He will come out several times a day though to do laps around the perimeter of the tank. At night he is very active moving around or gathering rocks for his cave. My questions. Is it OK to have a couple of fish in there? I tried to remove all the tanks previous inhabitants to move them to another tank but missed a few (2 clowns and a damsel). All are under 1 1/2". Will these bother the octopus? I know they will eventually become dinner if I dont get them out. Also I have a couple of corals in there, 2 rocks with shrooms and a sea matte. Will these be OK? Also, the octo is gathering rocks to allow himself more privacy. Right now there is a good amount of rock. He has found a hollow under a big rock that acts as a cave. He is now lining up rocks along the front of it to allow just a line of visilbity between the top of the cave and the rocks hes lining up below. Is this normal, or do you think this might be him stressed and trying to feel more safe, or is he at the end of his lifespan and getting ready to lay eggs? Thanks for any help anyone can be with these questions. With all the posts on here I could not find all my answers easily.