She's coming along, quite short and squat. Another week or two before first topping. Planning for a fairly extensive mainline/scrog grow, 3'x3' is the goal.

I switched from coco coir at seedling stage to potting soil for veg (copying pot-for-pot approach). I think the coco wasn't buffered with enough Cal/Mag, double wash next time.
The water pH has been high: around 8.0-8.5, I've since corrected to 6.0. This may account for the pale leaves.
Been adding a molasses tea every few days. I think the root booster is basically the same thing.