Would a octopus be considered.....

[predator#1]

as a agressive sea creature? I post something like this in the reef section,i didn't know where to post this. Could i place a octo in my 15gal?

 

[moraym]

Yeah, I call them aggressive since they're predators and eat just about anything in the tank with them.
Look on i think the photography board, there's a long post there with octopus info and pictures from I believe Innsmouth. Maybe just search for his username.