I wouldnt light your tank for any longer than 10hrs. with your MH so you dont raise your tank temp too much. But you are on the right track with the fuge light coming on about 1 hr. before the DT lights go out.
I wouldnt light your tank for any longer than 10hrs. with your MH so you dont raise your tank temp too much. But you are on the right track with the fuge light coming on about 1 hr. before the DT lights go out.