koolbloom powder

Hi all, I'm in my 5th week of flowering a single og kush in a small dwc setup. I'm running a mars ll 700 led, Lucas method gh base with liquid koolbloom and Humiboosta (Cal/mag/iron & fulvic base) at around 1.6 ec and pH around 6. It's my first grow and I had some issues along the way but...