Aug 30, 2017 #1 mpjones Community Member View Badges Joined Jun 20, 2013 Messages 86 Reaction score 9 Location Neenah, WI Rating - 0% 0 0 0 How long do you run/recommend to run your lights during the day?
Aug 30, 2017 #2 Crabs McJones I'm so shi-nay View Badges Excellence Award Reef Tank 365 Article Contributor Moderator Emeritus Hospitality Award Reef Tank 365 Boss Wisco Reefers My Tank Thread Joined Jul 24, 2017 Messages 27,806 Reaction score 139,920 Location Wisconsin Rating - 0% 0 0 0 It's going to vary depended on your corals, but most people do either a 10 or 12 hour day.