Phosphate can enter your pond through tap water, fish waste, and decaying organics such as uneaten food and dead algae. Excess phosphate contributes to unsightly algae and green water blooms, and in saltwater, excess phosphate can inhibit the growth of hard corals.
The API® Phosphate Test Kit tests phosphate levels from 0 to 10 ppm so that you can easily monitor the condition of your pond water. May be used in both fresh and saltwater ponds.
We recommend that you take a few minutes each week to monitor your pond conditions and create a better underwater world for your fish. Testing your aquarium water has never been so easy or accurate!INSTRUCTIONS