May 21, 2012 #1 canonxsi79 Aquarium Advice Activist Joined Apr 22, 2012 Messages 171 Location Los Angeles I'm trying to see how long do you leave your light on. For a reef aquarium
May 21, 2012 #2 Schism Aquarium Advice Addict Joined Dec 2, 2011 Messages 2,093 Location Lima, Ohio 10-12hours right now its lights on at 6am lights off at 6pm.
May 21, 2012 #3 mr_X Aquarium Advice Addict Joined Apr 27, 2008 Messages 17,895 Location Fairless Hills, Pa. 12 also. blues are on 12 hours, and the daylights are on for 10.