• 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.

Octo Q's


Blue Ring
Feb 6, 2005
okay um........how can you tell the age in an octopus briareus and tell the gender, mood, sick, etc.:bugout: :bugout: :bugout: please i need the answers

ps. um...........i dont really like posting and waiting so i would aprechiate if anyone would like to go chat octo stuff but if not i am fine here:biggrin2:............................just sayin:shock:
octopus_octo said:
okay um........how can you tell the

Age - If it stops eating and dies that means it's between 400 and 450 days old.

Sex - Males have one arm specially adapted to transfer sperm packets. I believe that it's the third arm on the left.

Illness - Octos are wild animals (even the tank bred ones). When a wild animal gets sick it dies; either from the disease or from impaired defenses against predators or parasites. By the time you recognize an illness it would be far to late to do anything other than euth. the animal.

Mood - You'll have to learn that from personal experience. Octos are individuals and will each respond differently to any given situation.

Finally, if you're uncomfortable waiting for answers on a public forum then I'd suggest that you go elsewhere with your questions. The purpose of a forum such as this is to form a community of folks to pool information and experience so that we all might learn. The purpose of a forum such as this is NOT to simply be an online information service for you.

Publicly yours,

Here's some info on sexing your octopus
Arm length = octo sex?

To know how mature the octo is for sure you'd have to cut it open- and no one wants that! But luckily sometimes you can tell the very basic maturity (juvenile, adult, fully mature) of your octo by looking at how well developed (enlarged) the gonad is. When visible through the skin (either when at rest or if you are able to see the mantle from underneath), the gonad looks like a white glob at the back of the mantle. In juveniles it's so poorly developed (if at all) that you can't really see it. If you see through the skin, you see two of the hearts as dark spots, but just a little white stuff (stomach, ceacum) in between. The gonad is easiest to see if your octo is a fully mature female, since the ovary grows like mad late in life and can look like she's carrying a golf ball under her skin. Mature males also have a visible testis, but it might not grow as large as an ovary would. The bigger the gonad, the more mature the animal is. If it's very visible, and enlarged, then the octo is fully mature and close to the end. If you can't see it, or it's there but not obvious, than your octo still has a way to go. These pics show octos at different maturity levels. Upper left is a fully graved female about to lay eggs. Upper right is a small adult, bottom is a mature male but not nearly full grown. Hope this helps!


  • conv_288438.jpg
    22.6 KB · Views: 58
Sponsor Banner
please support our sponsor
advertise on TONMO

Shop Amazon

Shop Amazon
Shop Amazon; support TONMO!
Shop Amazon
We are a participant in the Amazon Services LLC Associates Program, an affiliate program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.