PH Up & Down Bundle Size:8 Ounce - Bundle magnesium and iron specifically formulated

magnesium and iron specifically formulated to address any deficiencies that could be encountered

Elevate your gardening game with Humboldts Secret's 32 oz hose sprayer

CalMag & Iron can be used as a soil drench or foliar spray and is compatible in all mediums

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

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

PH Up & Down Bundle Size:8 Ounce - Bundle magnesium and iron specifically formulatedpH 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.