dwcr

It seems in my growing that my Dwcr system plants show cal/mag def while in my coco-coir don't at the same 2ml per gallon. I thought it was supposed to be the other way around where I would see def in coco-coir before I would in my Dwcr.

:420: Just finished my new dwcr system using 19 gal tub's. Each tub will have its own air pump and I made a chiller out of a dehumidifier that will sit in the res. There is also a pond pump that will feed from my res to my grow tub and back through the PVC pipe. I like to get some more idea's of...