boron def

Here goes, anything anyone can offer is greatly appreciated. Just started using King's Mix from Royal Gold, my first foray into coco growing. I'm an indoor soil guy, but as I'm fairly new to this, still looking for the most effective, inexpensive and 'organic' or 'natural' way to make these...

Well I'm not sure what the problem is with my girls, this started just a couple of days ago and they're getting worse fast, other wise, doing very well. My girlies are 3 - Pure Power Plant from seed. 600W. in a 4'X4'X6' tent 50% humidity, (via an, in tent, cool humidifier.) 75 deg. F. (via...