Sludge Remover Bacteria pellets and blocks are designed to remove organic sludge from the bottom of lakes and ponds. Sludge is the result of fish waste, dead algae or plant material, uneaten fish food, leaves and other debris. When introduced to the water, the blocks sink, dissolve and begin to remove bottom organic sludge — often several inches per year.
3-Gram PELLETS: Apply 1 scoop (8 oz.) per 1000-1500 square feet of beach, shoreline, or problem area every two weeks.
3 Gram PELLETS: Broadcast two scoops (1 lb) per 1/4 acre of surface area every two weeks.
Avoid using copper based algaecides for 48 hours within application.