Check the listing for details. NaturalPond� Pond Clarifier and Natural Flocculant. Condition: New. Listed at 29.99 USD. NaturalPond Pond Clarifier Natural Flocculant clears pond water by combining suspended particulates into larger pieces that then drop out of suspension and collect into your filter or pond bottom for easy removal. Your pond will be left with sparkling, clear water. All-natural seashell extract product is completely safe for fish, plants, and other pond inhabitants.Fast-acting results All-natural and biodegradable Safe for fish and aquatic plantsMade in the USAFor optimal results: Ensure a pH level of 7.2 to 8.9 and proper circulation via pump, fountain or waterfall.Directions: Turn off the circulation system in your pond and apply 1 ounce per 1000 gallons of water. Wait 15 minutes before turning the pond circulation system back on.Note: Treatment quantity can be increased up to double the regular amount. Pond water may cloud temporarily in ponds with a high pH level.