Alchemist pH Down Non-Corrosive GallonIn Store Location: @E17 Warehouse Location: @A28 Alchemist pH Down Non Corrosive Alchemist pH Down is comprised of very pure, food safe ingredients. This unique buffer is non toxic, non corrosive and non hazardous, making it like no other pH buffer on the market. Alchemist pH Down Non Corrosive will not increase the conductivity of your nutrient solution or add any minerals. Because it won't add any nutritional value, pH Down will not cause imbalances