As I have since day one Kush. It was the plan to "swing" the pH within a tight range. Not overly paranoid to smack 5.8 every time, but I was aiming for a nice clean and consistent grow. That plan's gone... Really starting to think 2 of them are not going to make it.
I just found a new thread over at UK420, apparently a couple of other growers are having very similar issues, Doobz seems to know this brand of coco well and made some pertinent comments on it. So at least I get to sleep tonight knowing it wasn't my complete incompetence... It all makes sense now, reviewing my steps. The initial stunted growth at transplant was not shock or LED shock at all, they had been loving LED up to then, even bending toward it.
The stunted growth was from the roots being nice ant 5.8'ish in the root riot cubes, and as soon as they touched the coco, wham! ph over 7, stunt, nute lock, yellowing, eating back the oldest and biggest leafs.
On the upside, I have some left over beans and a new tent on the way.... might as well just nuke this whole grow! Tent and all looolz... Burn it all to the ground and send the ashes over to Canna HQ so they can go fertilize themselves with them...
At worse, the next grow will start off as its supposed to... :no: