hello to all, i have had reef tanks for about 2 years with great success. I have always loved octopus and have finally decided to set up a tank for one. the tank is a 20 long from what i see its a bit smaller than it should be. it will have a refugium, skimmer, live rock and live sand. i was thinking of a blue spotted or something on the line of that. please i know most of youhaev kept octo's and i was told this is the site for the information i need. im sure there ahve been tons of posts about this topic but im new and i wanted my own, lol. please help me out wiht ANY info you can lend on a newbie to "Keeping" an Octopus. thanks in advance.