<a href=showthread.php?s=&postid=6780726#post6780726 target=_blank>Originally posted</a> by bertoni
The corals don't care about the night light, either, unless you're trying to get them to spawn and want to time them. They'll grow well without the night light. If you're using anything brighter that a couple of LEDs or so, I'd suggest turning them off entirely. How big is the tank and what do you have for night lights?