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.
If you read some of the accounts under Journals and Photos, you'll find that some people use a critter cage located within the larger aquarium to restrict the baby octo to a smaller area. That's one way of handling it.