how many hours a day do i keep my 400w. 14k. DE. HQI- reefstar pendants on....

[Chaotic Reefer4u]

im wanting some advice on how many hours do i leave my lights on my 100 gallon reef, its 60x18x24, any suggestions highly appreciated in kind...

 

[jay24k]

Really all personal preference imo. Alot advocate both ways. It also depends on the heigth above you tank the bulbs hang. I would say anywhere from 4 to 8 hrs. I personally run my 250's 7 hrs and they are 6" from the water surface.

 

[Chaotic Reefer4u]

thank you jay24k...

 

[Bigred]

I run my 400 DE's around 10-11 hours depending on the seasonal table.

 

[Chaotic Reefer4u]

right on Bigred, your an inspiration, wished we lived closer to eachother so my sps reef can look somewhat like yours...you sure know how to mcgyver these beautiful reefs and dial them in...peace, and thanks for posting some of your knowledge for me.

 

[Bigred]

Your not that far from me. Just a little over a hour.

 

[chrisdaphish]

why dont u run ur lights on for 24/7..assuming you do not have fish.... what bad woudl it do for the tank?