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

Barricade - Potassium Silicate 4 Litres
Advanced Micro 23 Litres (PH Perfect)
Big Bud Liquid 23 Litres
Advanced Bloom 4 Litres (PH Perfect)
Rhizotonic 5 Litres
Barricade - Potassium Silicate 1 Litre 





