Aquascape PRO Contractor Grade Cold Water Beneficial Bacteria for Ponds helps to provide clean, clear, and healthy water conditions in water as cold as 35-degrees Fahrenheit, significantly reducing pond maintenance required. Each bottle of Aquascape PRO Contractor Grade Cold Water Bacteria is 25% more concentrated than the consumer equivalent and is packed full of eight pure strains of concentrated bacteria. Our Beneficial Bacteria will effectively reduce fish waste, ammonia, nitrite and organic debris in ponds. Aquascape PRO Contractor Grade bacteria contains a 4.5 billion CFU per ounce potency, ensuring consistently effective treatment and the included marigold and vitamin B helps to bring out the natural colors of your fish while maintaining proper fish health. The included measuring cup and dosage guide makes application simple and easy. Each bottle treats 96,000 gallons. Aquascape PRO Contractor Grade Cold Water Bacteria is completely 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.