Well in this case... I had told the seller that I had an hour drive. She said she'd put in extra oxygen. (Not to mention, a heck ton of water. Which I'm sure makes them happy, but almost never have I been able to float the bag and NOT have some of it escape into the tank.)
And then when I got home, and discovered that the tank wasn't absorbing the ammonia... I had to do about an hour's worth of water changes to get it back to none. During this time, the bags were placed outside the room, in a bucket, in the dark. I did check on them every so often, seemed fine.
Then they floated for temperature for probably 20-30 mins. (It just so happened my dad wanted to do a walkthrough of the new apt and it's building issues. But to be honest, it might not have been the worst - the water probably had lost some of it's warmth.)
After that, I did 1/3 cup of water (with the 2 plus cups of their water, probably not much), about 5 times before draining the bags a little. I space it a part every 5 minutes. I succeeded in about 3 more times. While preparing the net, I turned around and sure enough, the Oto bag was tipped. (@#%%@!) When I checked, one had already left. He was already sucking the side. I guess enough was enough. So I let netted out the other Oto. The gourami and neons I continued acclimating for 15 more minutes, before netting them and letting them out.
I use as little light as I can get away with, which is pretty much the outside hall light, and little spot lamp. No direct lighting. (Considering that the bathroom is painted dark blue... light doesn't bounce around much.)
Anyway, I would have liked the otos to take the 30 mins of temp acclimating, plus an hour of water in the bag acclimating... but it ended up being 15 minutes short. As far as I know, it didn't bother them any. The next morning, I counted both of them, munching away...