how many hours a day for metal halides?

xtreme · #1 06-22-2009, 04:37 PM

Check out this thread for peoples opions on photoperiods. I think most people run theres between 6 and 8 hours a day. Personally my 250w MH is on for 7 hrs a day.

http://www.canreef.com/vbulletin/showthread.php?t=51820

burgerchow · #2 06-22-2009, 05:53 PM

Quote:

Originally Posted by xtreme

Check out this thread for peoples opions on photoperiods. I think most people run theres between 6 and 8 hours a day. Personally my 250w MH is on for 7 hrs a day.

http://www.canreef.com/vbulletin/showthread.php?t=51820

thanks. I'll think I'll run 6 hrs a day

banditpowdercoat · #3 06-22-2009, 06:29 PM

12 hrs here, the 150W's are 12hrs, 10am-10pm, and the 250W is 7 hrs, 2-9pm

BlueAbyss · #4 06-22-2009, 06:51 PM

I've been running my 70W for 10 hours.

Zoaelite · #5 06-22-2009, 07:07 PM

During the summer time my 400W DE fixture runs 12-6 I extend it to 11-7 during winter months. Supplemental actinics have about a 2 hour buffer zone on both sides for a dusk/ dawn effect. My Tek 5 system is on the same schedule.
Levi