My actinic settings on Radion XR15PRO's. In person the tank is a brilliant blue with serious pop on the coral colours, the picture doesn't really show how bright and blue it is, but you get the idea. PAR readings are low but acceptable given the color spectrum.
With the UV channel set to 0% the sand bed reading drops from 50 to 10. The other readings stay around the same and drop very little.
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