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Retain™ plant crystals are a safe and easy to use soil additive made out of water absorbing ingredients (cross-linked polyacrylate
Light and Dark growing function
skin aging and more
Pure Lemon
Microgreens pH Control Kit by General Hydroponics "9-21 Days" Retain™ plant crystals are aProfessional grade pH adjustment kit includes pH measurement drops and acid (pH Down) and base (pH Up) solutions to precisely raise and lower the pH of your water. By General Hydroponics. Ideal for adjusting pH for microgreens. pH Control Kit by General Hydroponics Microgreens thrive with slightly acidic water (pH around 6). Most city tap water has a pH over 7. This pH adjustment kit contains everything to more accurately measure and adjust the pH of