So Ive had my octopus for about 4 months now. When I got him/her it was already a decent size so im guessing it was about 2 months old. With this in mind I figure that my octopus (Pope John Paul II) has a couple of months left. Unfortunately all good things must come to an end and when his/her time does finally come I am going to convert my tank to a freshwater tank. I would still like to do an octopus so this leads into my next question. I would like to do a small saltwater tank like a nanocube or aquapod. I was wondering what everyones opinion was on this and if someone could give me an idea of what the best small "self operated" tank would be and what dwarf/pygmy octopus I would be able to keep in it.