Hello LushBuddy, and welcome to the Cdot boards.

Your first post is a winner, at least with me.
I gotta agree. The author of the paper has some other credible looking research out. I want to check some of that, and, of course, all these results are specie / strain specific. But at least he mentioned a quantified flux density at the plant surface. Like 10 micro-quadroons per square hyper-freckle or suppin'. :i feel stupid: At least it suggests a starting value for similar experiments with other plants. :weedpoke: Of course, he may be secretly on the take from the Albacore lobby. They are everywhere. :tin foil hat:

I get it by using a super actinic white T5 HO
Mac, some of those actinic tubes look like they're covering royal blue wavelengths. You thought of this already, yes?