For those people that would want to keep the light on at night, I have an idea. Its just an idea. Not sure if its good or bad. People could comment on this. And if it gets shot down then that is okay.
But, anyways, my idea is to keep the light off during the day and turn it on at night.
Would that be okay?
Because then the tank could act as a night light and you could watch your fish as you fall asleep for those that would want to do that.