I've been growing with Mills for about 2 years now. One of the reasons I like the Mills is because I don't have to do very many water changes. My last two plants I grew were 3 & 3 1/2 pounds with only 2 complete water changes. Also with Mills I was able to have extremely high ppm's without any...
I have been growing in dwc with Mills for the past few years and I'm contemplating switching over to Jack's. Has anyone yet developed a good formula for a 30 gallon dwc system with the Jack's.