OK its been nine weeks now. Last grow I flushed at this point...
This journal was to compare Ceramic metal halide to a HPS. Problem is I messed up and built that reflector. It really does reflect well. maybe too good as I have stressed the plants. These girls have that dam mildew and dont feel it is a fair comparison.
So what now, I think these girls would pack on more weight if I went another week or so. I know, I am getting greedy here but last time they had a nice growth spirt in the end and these are just not doing it yet. Maybe the reflector, the mildew, I just dont know. Sorry I messed this up. The way to do it right would be to grow under both lights in different cabs, at the same time, using the same res and the same clones.
With that being said, I will still post my opinion of the different bulbs after harvest but keep in mind conditions were not the same.