Clear Pond Sludge Buster Blocks, 8 1-Ounce Pack

Clear Pond Sludge Buster Blocks are a blend of beneficial pond bacteria and enzymes, in a pre-measured 1-ounce dissolvable block. These dissolvable blocks contain no binding agents or harsh chemicals, only 100% natural ingredients. Improved water clarity is accomplished in just weeks.

• Eliminates bottom sludge such as decaying plants, grass clippings, leaves, fish waste and other organic waste material
• Each 1-ounce block treats up to 1,000 gallons of water
• Controls odors by eliminating the build-up of dead and decaying organic wastes