EasyPro Sludge Remover is great for spot treating around docks, beaches or partially treating large ponds. This product is a slightly modified version of Pond-Vive. While Pond-Vive bacteria is designed to treat several issues of water quality, this sludge remover dry bacteria formula is specifically designed to reduce sludge! Comes in 3 gram Pellets or 1 ounce Blocks. Both are heavy and sink down into muck directly where applied. Helps reduce murky water caused by organic waste Reduces problem causing nitrates and phosphates Reduces odors caused by stagnant water and decaying material For spot treatment, use 1 ounce (either pellets or blocks) per 200-250 square feet of shoreline or beach area. Reapply every 2 weeks.For full treatment, use 16 ounces (either pellets or blocks) per 1/4 acre of shoreline or beach area. Reapply every 2 weeks. SKU Description Size ABB10X Sludge Remover Pellets (3g each) 10lb ABB25X 25lb ABB-50B 50lb ABL10 Sludge Remover Blocks (1oz each) 10lb ABL25 25lb ABL10-ABL25 Information Sheet ABB10X-ABB-50B Information Sheet Safety Data Sheet