Hitch hiker identification

Mar 25, 2007
We recently received some Tampa Bay live rock. Just yesterday when we were trying to extract a mantis shrimp an octopus came out. It looks as if there is another one in the same hole that the first one came out. I was wondering if you could help me identify what type of octopus would come from this area. I'm not sure how big it will get and exactly how to feed it. If it isn't reef safe, would it be ok to keep it in our 65 gallon sump if we provide some tubes for it to hide in as well as food?

Here's a picture but it will be hard to id him from this since he is all wrapped up. When I can get a better picture, I'll post it.