API Phosphate Test Kit API Phosphate Test Kit is a freshwater and saltwater aquarium liquid test kit that measures phosphate from 0 to 10.0 ppm, helping aquarists monitor algae risk and reef water quality. API Phosphate Test Kit for Freshwater Saltwater and Reef Aquariums Phosphate can enter aquarium water through fish waste, uneaten food, decaying organic matter, tap water, and some salt mixes. Excess phosphate can fuel algae blooms, and in saltwater aquariums it may interfere with hard coral growth by affecting calcium and magnesium availability. Liquid Phosphate Testing from 0 to 10.0 ppm for Algae Control Measures total phosphate from 0 to 10.0 ppm. Suitable for freshwater and saltwater aquariums. Useful for weekly phosphate monitoring. Helps identify phosphate sources that may contribute to algae blooms or green water. Important for reef aquariums where excess phosphate can inhibit hard coral growth. Includes two phosphate test solutions for liquid reagent testing. Good for troubleshooting persistent algae or checking source water and aquarium water. API Phosphate Test Kit Reef and Freshwater Use Notes Product type: liquid phosphate test kit Test range: 0-10.0 ppm Use for: freshwater and saltwater aquariums Recommended frequency: weekly when phosphate control matters Common phosphate sources: waste, uneaten food, decaying algae, tap water, and some salt mixes Use results to guide water changes, feeding adjustments, filtration media, or phosphate-control maintenance. API Phosphate Test Kit Directions Rinse the test tube before use. Fill the test tube with 5 ml of aquarium water. Add Phosphate Test Solution #1 according to the instruction booklet and mix as directed. Add Phosphate Test Solution #2 according to the instructions. Wait for the colour to develop before comparing the result. Read the result against the correct phosphate colour card in good lighting. Rinse the test tube after use and do not pour test contents back into the aquarium. What's Included Two phosphate test solution bottles One capped test tube Two colour cards Test kit instructions
