API Phosphate Test Kit - Test your fresh or saltwater aquarium for Phosphate levels.
Test Phosphate Levels in Aquariums
Scientifically accurate for professional results
Phosphate can enter your aquarium through tap water, fish waste, and decaying organics such as uneaten food and dead algae. Excess phosphate contributes to unsightly algae blooms. This kit tests phosphate levels from 0 to 10 ppm in fresh and saltwater aquariums.