Radion XR15 Blue Intensity level

[darnoc23]

Hello,
I recently switched my lights to a Radion XR15 Gen 5 Blue. I installed it in a canopy about 6 inches from the surface. I have a corner tank, 21 inches deep and 30 inches wide. I have mushrooms, zoas, hammers, and torches. For the past 2 weeks it's been running in acclimation mode at 35%. I have it now on schedule at 55% intensity. From the attached picture, it looks like the light is beaming right at the middle and doesn't spread. The Jawbreakers and some of the bounces appears to be moving and the OG has shriveled. The Zoas on the other hand appear to be stretching out more. Is 55% intensity too much or is it too little? I don't have a Par meter, but I'm getting different behaviors between the shrooms and zoas. The Euphyllia appears to not have any changes. TIA.

 

[Cichlid Dad]

These are designed to be 8 inch off the top. They are recommending 24x24 spread. If you are running the ab+ mode, 100% in my tank is 200- 250 par right under the light 6 to 8 inches from the surface. 150 mid tank 90-100 sand in a standard 75 gallon

 

[Lavey29]

I agree with the above. One light not enough for your tank. Maybe one XR30 would spread the whole tank. I run my XR15 lights at 100% intensity also just to get sufficient par in my 36x22x22 tank.

 

[legacy2mj]

Too little. You won’t crack 300 par at 100% unless your growing Lilly pads