Quote Originally Posted by Al B. Fuct
I use PK-13-14 in wk3. I absolutely can tell the difference when I run out and have to do a couple of batches without. It's the only 'magic sauce' in my op.

I otherwise use Canna Vega and Flores and H2O2, 50% @ 1ml/litre per 3-4 days.
Hey Al, do you use the pk from wk3 right up til flush, or just for a brief period? Am just starting to use it myself. :thumbsup: