pH Up and Down are buffers composed of a weak base (up) and weak acid (down) designed to correct pH imbalances in hydroponic gardens.
- pH Up when the pH tests too acidic
- pH Down when the pH tests too alkaline
- Small, root-and-substrate-friendly quantities

Big Bud Coco Liquid 250 Millilitres
Big Bud Liquid 250 Millilitres
Advanced Micro 23 Litres (PH Perfect) 





