Hey folks!
I decided for my second round of batches of mead that I'd get a O2 stone. I'm still doing small, 1 gallon, batches while getting this mead process down and experimenting too. My main question is about how long should I leave the O2 on in a 1 gallon batch? 1-2 minutes, 30 seconds, etc.?

From what I've studied I believe I don't need/want to add O2 after the 1/3 sugar break, but please correct me if I'm wrong.