CIUM MONTMORILLONITE CLAY 2-LB MICROBE-LIFT/CALCIUM MONTMORILLONITE CLAY 2-LB $7.75 SKU: EML090 QTY: Click here to save 5% off of your order! MICROBE LIFT CALCIUM MONTMORILLONITE CLAY 2-LB 100% natural & specially formulated for pond clarity & Koi health, growth, color. Clay is used n ponds to achieve many goals. Fish nutrition through mineral ingestion. Immunity against viruses. Improving fish color. Detoxifying and clarifying pond water (polishing). 100-249 gallons 1 level teaspoon twice weekly, 250-500 gallons 1 level tablespoon twice weekly, 501-1000 gallons 2 level tablespoons twice weekly. Measuring spoon included. You may use more clay to meet your goals. Clay cannot be overdosed.