How long do you leave your lights on your reef tank??

[Caesar Augustus]

Well???
Augustus

[Reefer769]

10-12 hours a day.

[miareefer]

Hi Caesar
I run my tanks on a 14 hour photoperiod 12 hours mh lighting and with 1 hour either side on fluro lighting everything seems to be doing very well under this period for me. I also have a caulepra sump that runs on 24 hour 150 watt mh illumination.

[reewik]

10 for the halides and 12 for the actinic PC's here.

[golfish]

doing about 6 hrs right now because I picked up all my sps that were in storage. Normally I run my MH's about 10 hrs a day

[zhenya]

Like Mark, I run my halides for 10 hours, actinics on for 12hours.

[Poseidon]

I do 12 hours on the Halides, left 1 on at 9 off at 9, Right one on at 10 off at 10. My Actinic is on a switch, so it goes on when either I or my wife wakes up.. Usually around 6:30 and Off when I go to bed, usually 10:30-11:30... I know I know, I should put that on a timer too, just haven't gotten around to it....

[reddhaus]

I am running about 12 on my VHO's and will be doing about 10 with the halides when they are installed.

[Chris Lakies]

1 250 watt HQI DE - 9 hours per day.

[Caesar Augustus]

Thanks everyone, 12 hours it is. Actually I'm running the actinics for 12 and the reg pc'x for 10. I've been having an algae problem.