How long do you leave your MH on? [Archive] - Reef Central Online Community Archives

View Full Version : How long do you leave your MH on?

jwheeler

12/30/2005, 08:57 PM

I have an AquaMedic 250W 20k MH over a 20L, with no other lighting, except moonlight soon, how long should I have the MH every day, if it is a mainly SPS tank?

Billy1234

12/30/2005, 11:27 PM

I keep mine like this:
9:30am- Blue LED's on
9:45am- White LED's on
10:00am- Halide on and both LED's off
10:00pm- Halide off and both LED's on
10:15pm- White LED's off

E-A-G-L-E-S

12/30/2005, 11:28 PM

actinic's from 10 A.M. - 10 P.M.
halides from 11 A.M. - 9 P.M.