As phosphate increases, so does the chance of having unsightly algae and green water blooms. Test reads 0 to 10 mg/ or parts per million (ppm) of phosphate in fresh or salt water.
![API Ammonia Test Kit Freshwater and Saltwater 130 Tests API Ammonia Test Kit Freshwater and Saltwater 130 Tests](https://cdn11.bigcommerce.com/s-ldfio/images/stencil/500x659/products/2525/190222/original__82239.1721668270.png?c=2)
As phosphate increases, so does the chance of having unsightly algae and green water blooms. Test reads 0 to 10 mg/ or parts per million (ppm) of phosphate in fresh or salt water.