Due to the Nitrification that occurs in a healthy aquaponic system, the pH should naturally fall over time. Calcium Hydroxide and Potassium Hydroxide are added to maintain pH at the desired level of 6.5-7.0. By alternating between the two, a good balance of nutrients is maintained for growing the healthiest plants.

This kit includes:

• pH tester (250 tests)
• 1 kg of powdered Calcium Hydroxide (2.2 lbs)
• 1 litre Potassium Hydroxide pH Up
• 1 litre Phosphoric Acid pH Down