Hey everyone, i am new to this site and i am new to octopuses. I think they are fascinating creatures and i would really love to buy one and ill be going to my LFS in a couple of weeks to get one but i have some questions that im still not quite sure of so if you guys can help me out and answer my questions so here it goes. #Can i feed my octopus a stale diet of fish (if so which kinds) and feed crabs as a treat?? #What other foods can i feed my octopus?? #What are the different species of octopus that are good for a beginner?? #What about Blue Ringed Octopuses?? #What size tanks are needed for these different beginner octopuses?? #Can they be handled?? #Can i have any tank mates?? Well these are my questions, i hope nobody disses me because i am a noob to this and i would appreciate it if you answered my question. So i do want a small species that can go in a decent sized tank (like a 20 gallon) and that is good for beginners, again thanks.