I soak rapid rooters in 5.5 ph'd water, for CLONING. Not sure if this is the same for seeds.
Also, I believe you want to calibrate your PH meter using BOTH 4.01 and 7.01 solution. I believe you start with 7.0, then calibrate, then rinse with water, then 4.0, then calibrate, and it should be good. At least, this is how we calibrate the Bluelabs pens. :aok:
Lookin' great Brix!! Can't wait my friend!
Correct, and I personally PH to 5.5 for seeds as well, 100% so far
Someone told me last year to do seeds at 4.5, but I decided not to because well...if it aint broke dont fix it.