Sorry but no exp with the yellow bottles.
Calmag is a must in RO water but can be used in all water. I run tap that comes out at 120ppm and I run a weak str of calmag as a preventitive.
tinytoon Reviewed by tinytoon on . Agricultural Organics - Yellowbottles Hi everyone, first time poster here. I've probably gone through 10 pages of the Hydroponics forum today and have learned many things. I'm going to be starting a first time project, Ebb & Flow style. I went to a hydroponics shop last weekend at a grand opening and they were selling Agricultural Organics, Yellowbottle additives for %50 off! I'm going to be using the Botanica CNS17 for my base nutes. I was wondering if anyone here has had any experience with this line of additives? I Rating: 5