Thanks for the forum, I'm gonna go check it out now. I'm analyzing what I can move to the 50 gallon and what needs to stay in the 100 gallon. I can probably make it so that he has the 100 gallon mostly to himself. Since bigger is better specially since I don't know yet how much he'll grow. I'll read up some more on the vulgaris, it does seem to look like the one I have. I never thought I'd be looking at an octopus as a hitchhiker though with all the wildlife in Ocoa Bay and the miles long drop no one's ever explored there I shouldn't be surprised. God knows what else is in there just minding it's own business. Ahh, the ocean is awe inspiring and incredibly beautiful. Thanks everyone for your input, I'll keep you posted!