General Hydroponics pH Down

GHE pH Down is a premium pH management and buffering solution for hydroponics, coco and soil. It's not just a simple acid - GHE pH Down makes a real contribution to nutrient solution stability. To make GHE pH Down they carefully blend three acids commonly used alone in hydroponics to give you all the benefits of each - without the disadvantages.

GHE pH Down uses nitric and phosphoric acids to do the initial heavy lifting of altering your water pH, and the blend of both means no disturbance to your N/K ratios throughout grow and bloom - and no residue on the surface of your tank from using phosphoric alone in hard water areas. Then, with its own special characteristics, organic citric acid takes over to buffer pH changes over time, keeping your nutrient solution more stable, and helping handle calcium excesses in hard water areas.

To maximise plant growth, the pH level of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaing the proper pH range because their formulas are pH buffered. However, some important exceptions do exist. pH can acidify to an unacceptable level when nutrient solutions are used with poor quality water or pH unstable media, such as Rockwool. High growth rates can also destabilise pH.

Available size: 500ml