[quote=Volker]
4200K is a lousy spectrum in flouros. It's the yellow/green area. I'd recommend the 6500K. Reference this chart.
[QUOTE]

Wow, you're right, that does suck. Damn, that means I've been abusing my other plants too cause they have a Metal Halide lamp, probably in that same 4200 K range. Sheesh. I mean, I knew 6500 K was better but I didn't know it fell off like that.

Thanks!