Aeration at lights off is good for the aerobic bacteria consume organic debris and keep the aquarium healthy. Less algae problems too.
I've starting to do this after some friendly advice from experts.
Put an aerator with air stone on a timer to come on after lights out.
The amano one does this method with their lily pipes because they don't want to add equipment into the tank.
Anyway, i don't like the idea of lifting and dropping thne height of the lily pipe everyday. [they have workers to do it]
