Ideal for the organic or hydroponic gardening, Viagrow's Natural pH Down Adjusting Crystals is a crystallized pH adjuster for the professional or hobbyist. Use Natural Down pH Adjuster to lower the pH of plant solutions and soils for healthy growth. Contains 16 oz. of crystals.

　　- For soil, soilless, hydro-organic, hydroponics, and foliar applications

　　- Compatible with organic and synthetic fertilizers

　　- Add crystals in small quantities, mix thoroughly, then check pH

　　- Contains citric acid

　　- MFG Model # : VGPDD501

　　- MFG Part # : VGPDD501