• Welcome to TONMO, the premier cephalopod interest community, and birthplace of #WorldOctopusDay and #CephalopodAwarenessDays. Founded in 2000, we are a large community of experts, hobbyists and enthusiasts, some of whom come together when we host our biennial conference. To join in on the fun, sign up. You can also become a Supporter for just $50/year to remove all ads and enjoy other perks. Follow us on Twitter for more cephy goodness.

Small tank and octopus help


Pygmy Octopus
Sep 23, 2006
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.


Blue Ring
Apr 25, 2007
I have had a great deal of success in keeping smaller species in bio-cubes (aka nano cubes). Oceanic makes a wonderful one in a 14gal. Currently I have a small filosus in it as we speak. I also have an 8gal which I housed 2 different blue rings on 2 different occasions. Each one thrived and lived a long time in this tank. The filtration is very very good, the only thing that would be better is if you could use a skimmer. That compromises the tank's seal, leaving room for an escapee.

Latest Posts

Forum statistics

Latest member
acorn kid

Monty Awards

TONMOCON IV (2011): Terri
TONMOCON V (2013): Jean
TONMOCON VI (2015): Taollan
TONMOCON VII (2018): ekocak