Seachem Stability 250ml | Aquarium Biofilter Bacteria Starter for Freshwater & Marine Tanks

A biological aquarium conditioner designed to quickly establish a stable biofilter and help prevent new tank syndrome in freshwater and marine aquariums.

Seachem Stability introduces beneficial bacteria that support the breakdown of waste organics, ammonia, nitrite and nitrate, helping to create a healthy aquatic environment.

Safe for fish, plants and invertebrates, it supports stable and long-term aquarium conditions.

Key Benefits

• Rapidly establishes aquarium biofilter bacteria
• Helps prevent new tank syndrome
• Breaks down ammonia, nitrite and nitrate
• Safe for all aquatic life and plants
• Suitable for freshwater and marine aquariums
• Supports long-term water stability

Who It’s For

• New aquarium setups
• Fish keepers cycling a tank
• Freshwater and marine aquarium hobbyists

How to Use

• Shake well before use
• Turn off UV/ozone equipment before dosing
• Day 1 (new aquarium): Add 1 capful (5 mL) per 40 L (10 US gallons)
• Days 2–7: Add 1 capful (5 mL) per 80 L (20 US gallons) daily
• Fish and aquatic life may be introduced at any time during this period as long as dosing is maintained for 7 days
• For maintenance: use 1 capful per 80 L once a month, during water changes, when adding new fish, or after medicating
• For best results, use alongside biological filtration media such as Seachem Matrix
  

Why You’ll Love It

A reliable and safe way to establish a healthy aquarium quickly, helping protect fish while stabilising water quality from day one.