How high to I hang a T5 Hybrid?

[Zeal]

I'm setting up a T5 Hybrid with an Xr15W Pro Gen 4, How high should it be above my tank for optimal efficacy? I have lots of SPS and LPS

 

[Osaurus]

Around 9 inches is a good starting point.

 

[Zeal]

Around 9 inches is a good starting point.

I use the arm for the radion so in my mind that was maybe the best height?

 

[Osaurus]

I use the arm for the radion so in my mind that was maybe the best height?

I'm not sure what that height is. As long as the light coverage is adequate and the mounting height is not too high to be spilling into the room, but not too low as to create hotspots (radion) or a splash hazard on the lamps (T5s) you're good to go.