Pond Sludge Remover Packs eliminate pond sludge on rocks, gravel and filtration. Sludge buildup is caused by fish waste, plant matter and other decaying material.
The easy-to-use water soluble packs dose the sludge directly and make it easy to spot-treat and treat hard to reach areas. Each pack treats up to 1,000 gallons of water.
Pond Sludge Remover Packs are safe for fish, plants, and animals.