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 foo
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Reliable API Tester
Simple to read instructions.
I appreciate the lid is attached to the tube, so you don't accidentally lose it during cleaning.
L
Lameperson · October 1, 2025
Easy to use
Like other API test kits, this one works great and easy to use