PH Up & Down Bundle Size:8 Ounce - Bundle CalMag & Iron contains an

CalMag & Iron contains an exact balance of calcium

Use CalMag & Iron as a root drench or foliar spray

I still want to use additional additives - can I stack CalMag & Iron with Golden Tree

No products from Humboldts Secret are made with any harmful or banned PGRs

coco and DWC systems

PH Up & Down Bundle Size:8 Ounce - Bundle CalMag & Iron contains anpH Up & Down Bundle provides precise control of nutrient solution pH to support healthy plant growth. Designed to raise or lower pH levels as needed, both solutions are highly concentrated, dye free and effective across all growing mediums including soil, hydroponics, coco and DWC systems. Developed by growers for growers, this bundle delivers reliable, efficient pH management with just a few drops per use.