API Pond, 16 OZ, Ecofix, Sludge Destroyer, Pond Water Clarifier & Sludge Remover Treatment, Natural Active Ingredients To Break Down Fish Waste & Consume Pond Sludge, Breaks Down Dead Algae & Digests Leaves & Grass Clippings Helps To Reduce Overall Pond Maintenance & Keep Pond Clean, Use Twice A Week For 2 Weeks For Initial Dose, Quick Clean Up & End Of Season, & Once Every Other Week For Maintenance, Bottle.