Distance for MH Lights

[Reefscape]

Hello All..

What distance from the water surface would people suggest having the 2 250W metal halide lamps on a 18" deep tank?

Thanks in advance

Niko

 

[Fishieness]

no less than 6" to prevent water splashing up. if these are SE or without a splash guard (coralife makes DE bulbs with UV protection so you dont need a splashguard) and water hits them when they are hot, it is possible for them to burst. i have mine at 8
many people start around 12 for acclimation and lower them down to the desired height.

 

[Ghost_knife]

mine are about 9 inches from the tank since it's been up

 

[Reefscape]

Cheers Ghost and Fishieness...

Answered my question..

Thanks

Niko