• Welcome to TONMO, a community of cephalopod experts, hobbyists and enthusiasts. Established in 2000, we are the founders of TONMOCON, and birthplace of World Octopus Day and Cephalopod Awareness Days. ...You can register here, and Introduce Yourself. To rid yourself of ads and enjoy other perks, become a Supporter for just $25/year. (Now accepting bitcoin & other crypto!) ...Follow us on Twitter and YouTube for more cephy goodness.
  • Looking to buy a cephalopod? Check out Tomh's Cephs Forum, and this post in particular shares important info about our policies as it relates to responsible ceph-keeping.

30 gallon tank?


Aug 9, 2004
I pygmy should do good, but I believe they only have like a 6 month life span, and you dont normally know how old they are when you get them...

I also have a 30g with a Bimac, most people here say a 30g is to small for a Bimac, but I have noticed a good number of people with 30g.

So I may be transfering tanks in the future, but for now there are no problems.