Check the listing for details. Microbe-Lift Calcium Montmorillonite Clay, 6 lbs. Condition: New. Listed at 43.33 USD. Microbe-Lift Calcium Montmorillonite Clay 6 lbs Clay is used in ponds to achieve many goals; improving fish color, detoxifying and clarifying pond water, fish nutrition through mineral ingestion and for immunity against diseases. Application RatesPond Size (gallons)Maintenance (once per month)100-2491 level teaspoon twice weekly250-5001 level tablespoon twice weekly501-1,0002 level tablespoons twice weekly Webb's eBay Store Store Home Store Policies Feedback Shipping Most orders are shipped from our warehouse in Maryland. We warehouse over 95% of the items that we offer, which is a key to our quick order turn-around. Some orders are drop shipped directly from our manufacturer's in various states within the continental US. All orders are shipped via either UPS or FedEx therefore we cannot deliver to PO boxes, please supply a physical address to which we can ship your order. Payment We accept PayPal and the following credit cards: Visa, MasterCard, American Express, and Discover. Please feel free to contact us with any questions.