API® Pond pH Up®, 16 Ounces Complete Aquatics and especially for use with

and especially for use with Hakko Air Pumps

Can be used within biological filter for maximum impact

there's no clogging or channeling

When water temperature is consistently above 70°F

API® Pond pH Up®, 16 Ounces Complete Aquatics and especially for use withAPI pH Up slowly raises the pH of pond water (making it more alkaline) without harming delicate pond fish or aquatic plants. Slowly neutralizes acidic substances that cause low pH, which stresses pond fish and suppresses the activity of a biological filter. Contains no algae promoting phosphates UPC Code: 317163161715 Application Instructions Test pH level before applying. Add 2 teaspoons of pH Up for every 50 gallons of pond water. For best results,