• Welcome to TONMO, the premier cephalopod interest community. Founded in 2000, we have built 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 - it's free! You can also become a Supporter for just $50/year to remove all ads and enjoy other perks, like Site Search. Follow us on Twitter or Facebook for more cephy goodness.


  1. phOOey

    Captive nautilus buoyancy issues

    Hi all, I was hoping someone may be able to help me with some nautilus I have in my lab at the moment. They seem to have lost the ability to control their buoyancy, they all just tend to float at the surface. Other than that they seem absolutely fine health wise. From reading around it seems...