• 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.


  1. OctoNation

    OctoNation- An Instagram community of Octopus Fans :D

    Howdy CephFans! I created a page on Instagram called Octonation The premise is this #OctoNation™ If ya love , we got you :) OctoNation™ is a tentacle inspired community curated with art, cool facts, and fun photos of octopi - stick around ➰➰ if you're interested in contributing I would love to...