Check the listing for details. Pond Clarifier, Pond Flocculant Water Clarifier -HydroFloc. Condition: New. Listed at 39.99 USD. HydroClear™ HydroFloc™ Water Clarifier Flocculant is safe for use in ponds with koi, pond fish, turtles, and all aquatic animals. It is also safe for aquatic plants and pet animals when used as directed.Made in the U.S.A.Quickly clears dirty, cloudy waterSafely and quickly clears cloudy water by combining suspended particulatesProprietary blend of Aluminum Sulfate, Monopotassium Phosphate, and Sodium CarbonatePositively charged molecules that attract, bind, and coagulate negatively charged suspended particulates that cloud waterFor use in all types of ponds, pondless water features, and fountainsUse after pond or water feature construction to quickly clear the waterUse after placing aquatic plants in pondsUse whenever soil, or mulch is accidentally washed into a pond or water featureBegins clearing water within hours of application Quickly clears dirty, cloudy water.Use after construction of your pond or pondless waterfall to clear the waterUse after planting aquatic plants in your pond to clear the waterUse whenever soil or mulch wash into your pond or pondless waterfall and cloud the waterUse whenever water in your pond or pondless waterfall gets dirty or cloudy