Aquascape PRO Contractor Grade Sludge and Filter Cleaner helps to maintain a strong biological balance in your pond while quickly cleaning rocks, gravel, and filter pads. Each bottle of Aquascape Sludge and Filter Cleaner is packed full of five pure strains of heterotrophic bacteria and 25% more concentrated than the consumer equivalent, making it the ideal choice for discriminating pond professionals. Our Sludge and Filter Cleaner will effectively reduce fish waste and decaying organic plant material n your pond, allowing you to spend more time enjoying your water feature and less time maintaining it. Our Sludge Cleaner contains a 4.5 billion CFU per ounce potency, ensuring consistently effective treatment and the included marigold and humic acid help to improve the pond environment for your fish. The included measuring cup and dosage guide makes application simple and easy. One bottle treats up to 96,000 gallons. This treatment is safe for fish, plants, pets, and wildlife. Aquascape is passionate about ponds, water features and gardening, providing unique products, designs, and features that stand above the competition.