hello everybody, im irish, nice to meet everyone ( =. a good friend of mine from Reef Central referred me to this site to ask some questions about an octo tank. i have a 40L and reallllly want an octo or a cuddlefish, im thinkin more along the lines of a octo because the personality. i am a junior in Highschool, but i am in good relation with my LFS owner, so i can get about any octo. i need some help, i want an octo that is as diurnal as possible, and that has a great personality. i have heard most octos are hardy once you get them established. is this true? i have a skimmer, soon to be a fuge with cheato algae, and im thinking about picking up an RO/DI unit. should this keep the water clean? thanks for all the help (sorry this was so long!!) nice to meet everyone again!