I'm not sure if this is the best place to post some octo questions, but I'd like some more information than I've gotten from other hobbyists on the journals thread. I know that octos require a high level of oxygen, but I've also read posts concerned about harming octos. What is the concern, do bubbles pose a threat to them and how? My current aculeatus, ("Once-er" in journals) is brooding. I have been wondering how much H2O motion they need (I know, it's hopeless but I'll try). I'm overthinking things now. The babies need lots of O2, and in the ocean the is lots of turbulence, so I added an air "curtain" and removed the power head so they don't get sucked up. Now I think I've overdone it. What (if any) is the relationship between O2 and turbulence, and how do those things effect baby octopuses? Thank you so much for your help!