I would agree with what Coralreefer said but I also use a RDP and I like to kick my fuge light on about an hr earlier then my main tank lights go off that way the plants get a little wake up call and are at full swing and ready for business. Theni I have them go off about a Hr after the manin lights come one . Just my opinion But yes you have to run a RDP Reverse Day Photoperiod _________ Some of the world's greatest feats were accomplished by people not smart enough to know they were impossible (Doug Larson) |