How many hours of light?

[ray28576]

How long should I run my 2 HQI MH 150 watt lights each day, and my 4 65 watt Actinic PC lights for my reef aquarium.

 

[nycbob]

i'd say mh 8 hours and pc 10-12 hours.

 

[dragonboy]

You can do 5 hours for MH its not necessary to have it that long but if you want it to grow then more hours should apply.

 

[teen]

depends on the corals. i run my 250w MH 11-12 hrs a day for sps.

 

[jrthomas40]

i run mine for about 8hours

 

[hypertek99]

I run mine 5 hours

 

[happyhourh]

I run my t5s at full daylight for 10hrs. Actinics for 1 hour before the 10ks kick on and 1 hr after they turn off.