I have a programmable led on my refugium. Online I read that a light spectrum of red, 30% green and 15% blue is good for growing chaetomorpha. Ok so I am doing that. But not too long ago I bought a Kessil H150 Purple and put it on my other refugium which had Chaeto. The Chaeto grew overnight. So my cheato is growing but not fast. I did't want to deal with pruning it so I took down the Kessil. But it grew so fast. Any tips on what the proper spectrum should be for growing Chaeto? Should I go back to the purple Kessil and let it grow rapidly? Should I be growing it fast and pruning and throwing it away (the excess)? Seems like gonna be pitching copepods.