• 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. P

    UV Sterilization - butt burn

    Does anybody know how long it takes for the cuttlefish to die after it has been exposed to butt burn?
  2. M

    Strange Hurts in my Octo

    Hi! some weeks ago I've asked about octopus parassites. My octo has always the same strange hurts on the head and between the eys. I'm sending you the pictures of them. Now in the hurt in the head there's a cut too. what do you think it could be the cause? :confused: