API Phos-Zorb Aquarium Canister Filter Filtration Pouch, Size 6 Food Topper Detects high nitrate levels from

Detects high nitrate levels from 0-160 ppm

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API Phos-Zorb Aquarium Canister Filter Filtration Pouch, Size 6 Food Topper Detects high nitrate levels fromPhosphate can enter the aquarium in fish waste, decaying organic matter and tap water. High phosphate in the aquarium can cause water clarity issues. Phosphate can be reduced with API PHOS ZORB, a phosphate removing filter media. API PHOS ZORB comes in a specialized convenient pouch that eliminates cloudy water caused by phosphate and silicate. API PHOS ZORB removes these common nutrients and enhances the growth of hard and soft corals in saltwater.