Seachem Stability – Biological Filter Starter for Aquariums (250ml)

Seachem Stability is a state-of-the-art biological stabilizer that establishes and maintains the biofilter in freshwater and marine aquariums. It prevents the #1 cause of fish death— “new tank syndrome”—by introducing a robust mix of beneficial bacteria that break down harmful waste compounds.

Unlike other bacterial supplements, Stability contains non-sulfur fixing strains that won’t produce toxic hydrogen sulfide. Its bacteria remain viable across a wide range of environmental conditions, making it more reliable than competing products. Stability is completely safe for all aquatic life and can be used during cycling, after water changes, or when adding new fish.

Key Features:

• Rapidly establishes biofiltration in new tanks
• Breaks down ammonia, nitrite, and nitrate
• Contains aerobic, anaerobic, and facultative bacteria
• Safe for all fish, shrimp, corals, and plants
• No refrigeration required – long shelf life

Product Specifications:

Brand: Seachem
Volume: 250 ml
Form: Liquid
Country of Origin: United States

Directions for Use:

Shake well before use. Turn off UV/ozone. On Day 1, use 1 capful (5 mL) per 40 L (10 US gallons). For the next 7 days, use 1 capful per 80 L (20 US gallons) daily. Fish may be introduced at any time as long as the dosage is maintained. For maintenance, dose 1 capful per 80 L monthly or after water changes, new fish, or medication.