Cloudy and discolored water is caused by overfeeding; biological blooms; gravel dust; and other suspended particles that are too fine to be removed by mechanical filtration and stay in the water column. FritzPond Clarifier rapidly clears water by pulling together (flocculating) fine particles; allowing them to be removed by the filter or settle to the bottom; leaving your pond crystal clear. FritzPond Clarifier will not affect bio-filtration or pH or other important water parameters like other brands. Safe and effective for use in all types of water features and ponds. 100% phosphate free; safe for all fish; ornamental plants; wildlife; and invertebrates; will not contribute to future cloudy water problems. FR24016 Casebuy:12.