PH Up & Down Bundle Size:8 Ounce - Bundle No products from Humboldts Secret

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

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

dye-free and effective across all growing mediums including soil

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

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

PH Up & Down Bundle Size:8 Ounce - Bundle No products from Humboldts SecretpH 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.