Just curious, my tank light shuts off at midnight, however i am usually up until 4-5am. Will having lights on mess up my tanks lighting schedule? I'm not sure at what level plants can actually use light. I have a 9w CFL over my stove (approx. 10 feet away) that is on a lot at night and another in the living room (60 watt incandescent - approx. 25 feet away) that is often on (usually dimmed slightly though). Just wondering if this is problematic? Of course, one could say, look at your tank and decide, but i just wonder if things would be more in balance and potentially grow better if this is an issue and resolved. There's also ambient light from daylight that is in the room before lights come on (all windows have shades but of course it's not pitch black).