Well oxygenated water makes an happy octopus

Although you might be a bit careful with that since (please anyone correct me if i'm wrong here!!) the air that is injected in the water-stream tends to heat up the water slightly. I guess this doesn't matter as long as you don't have very high temperatures in your room or if your tank temperature is already at the upper limit.
Of course this also can have the opposite effect.
I believe nancy once said about the tank temperature that she mostly lets the skimmer (which also works with air bubbles) run at night when the air in the house is cooler.
These are only my thoughts and I don't know if this is really such a big thing at all though
