FRITZ LIQUID TEST KIT - PHOSPHATE TEST KIT - Excess nutrients can lead to poor water quality very quickly. If not controlled, phosphate (PO4) can rapidly build up in aquariums from fish waste and uneaten food, decomposing algae and other organic matter, and aquarium supplements and tap water that contain phosphate. Easy-to-read Instructions. Essential for a Healthy Tank. Accurate in both Fresh and Saltwater.
