FritzPond Clarifier rapidly clears cloudy 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. Safe for all fish, ornamental plants and wildlife. Economical concentrated formula Creates a crystal clear pond Improves filter efficiency Easy-to-use Directions & Dosage Add 1 tsp (5 ml) per 50 US gallons (189 L). Each cup treats 2,400 gallons. Shake well before using. For best results, pour into an area with high water flow. Your pond will begin to clear in 3 hours or less. Repeat as needed, allowing 24 hours between treatments. ATTENTION: Make sure there is adequate aeration before using any type of clarifier, especially during warmer months. Decomposing organic matter will lower the oxygen level in pond water.