Seachem Stability - 250ml Seachem Stability - 250ml is a biological aquarium supplement for freshwater and marine systems, helping establish and maintain the biofilter in new aquariums, after water changes, and during routine maintenance. Seachem Stability for New Aquarium Cycling Stability adds a blend of aerobic, anaerobic, and facultative bacteria that support the breakdown of waste organics, ammonia, nitrite, and nitrate. It is useful when starting a new aquarium, adding fish, medicating, or restoring biofilter performance after maintenance. Biofilter Support for Freshwater and Marine Tanks Helps rapidly establish the biological filter in new aquariums. Suitable for freshwater, marine, and planted aquarium systems. Supports breakdown of waste organics, ammonia, nitrite, and nitrate. Useful after water changes, filter cleaning, medication, or adding new fish. Formulated with non-sulfur-fixing bacteria that will not produce toxic hydrogen sulfide. Seachem Stability Biofilter Supplement Details Product type: Biological aquarium supplement Primary use: New tank cycling and biofilter maintenance Suitable systems: Freshwater, marine, and planted aquariums Initial dose: 5 ml per 40 L (10 US gallons) Maintenance dose: 5 ml per 80 L (20 US gallons) Package size: 250 ml Directions for Seachem Stability Shake well before use. Turn off UV sterilizers and ozone before dosing. For a new aquarium, use 1 capful or 5 ml for every 40 L (10 US gallons) on the first day. Then use 1 capful or 5 ml for every 80 L (20 US gallons) daily for 7 days. For best biofilter performance, use 1 capful for every 80 L once a month, with each water change, when introducing new fish, or when medicating an aquarium. What's Included 1 x Seachem Stability - 250 ml