Brightwell Aquatics MicroBacter7 - 500ml Brightwell Aquatics MicroBacter7 - 500ml is a complete bioculture for establishing biological filtration and improving water quality in marine, reef, and freshwater aquariums. It combines non-pathogenic microbes and natural enzymes to help process dissolved and particulate organic waste. Brightwell MicroBacter7 Bioculture for Aquarium Filtration Support MicroBacter7 is designed to seed and maintain beneficial biological activity in aquariums. It is suitable for new aquarium setups, established systems with rising nutrient levels, and aquariums where biological filtration needs support after cleaning, livestock changes, or routine maintenance. MicroBacter7 500ml Benefits for Marine Reef and Freshwater Tanks Helps reduce organic carbon, ammonia, nitrite, nitrate, and phosphate. Supports digestion of uneaten food, excreta, detritus, and other organic material. Helps improve water clarity and overall aquarium cleanliness. May reduce hydrogen sulfide production in aquarium substrates. Helps limit phosphate availability to nuisance algae and cyanobacteria. Supplied in a state of suspended animation for product longevity. Brightwell MicroBacter7 Storage Ingredients and System Notes Size: 500 ml bottle. Use: Marine, reef, and freshwater aquariums. Product type: Beneficial bacteria and enzyme bioculture. Storage: Refrigeration is not required, but cool shaded storage prolongs activity and refrigeration can maximize shelf life. Ingredients: Purified water, proprietary blend of natural enzymes, and non-pathogenic beneficial microorganisms. Do not use with Brightwell QuikCycl. MicroBacter7 Dosing Directions for New and Established Aquariums Shake well before use. Mix the appropriate dose with 250 ml or about 8 fl. oz. of aquarium water in a clean container before adding to the aquarium. Best results are often achieved by adding the mixture to external biological filtration when applicable. Do not add to pump intake ports. Turn protein skimming and UV sterilization off for 4 hours after dosing. For medium- to high-nutrient systems or new aquarium seeding, dose 5 ml per 25 US gallons daily for the first two weeks, then switch to low-nutrient maintenance dosing. For stable low-nutrient systems, dose 5 ml per 50 US gallons no more than once weekly, or 1 ml per 50 US gallons daily. What’s Included One 500 ml bottle of Brightwell Aquatics MicroBacter7.