Control Your Nutrient Reservoir With General Hydroponics pH Down 1 Quart The General Hydroponics pH Down 1 Quart is an acid formulated from food grade phosphoric acid, and will help you lower the pH in your reservoir to the ideal range. If you aren't already aware, plants are pretty fickle when it comes to uptaking nurtients. If pH isn't in the ideal range (5.5-6.5), certain nutrients will get locked out, causing deficiencies and toxicities that lead to stagnant growth, wilting, or worse. So, its your job as the grower to monitor conditions in your reservoir by testing before each feeding or watering. And should you notice a spike in pH above 6.5, you need to use General Hydroponics pH Down 1 Quart to bring it back down into the optimal zone. If you want to learn more about the relationship between nutrients & pH , visit our blog for the full guide.
