Seachem Stability 250ml – Biological Filter Starter with Live Beneficial Bacteria

Seachem Stability is a premium biological filter starter containing specially selected live bacteria that rapidly establish and maintain biological filtration in freshwater and marine aquariums. It is designed to help prevent New Tank Syndrome, one of the most common causes of fish loss in newly established aquariums.

The advanced formula contains a blend of aerobic, anaerobic, and facultative bacteria, allowing efficient breakdown of organic waste, ammonia, nitrite, and nitrate under a wide range of aquarium conditions. Unlike many bacterial supplements, Stability contains no hydrogen sulphide-producing bacteria, making it exceptionally safe for fish, shrimp, invertebrates, corals, and aquatic plants.

Developed over nearly ten years, the bacterial strains are highly resistant to changes in temperature, pH, and organic load, ensuring reliable biological filtration even when water conditions fluctuate. Stability can also be safely overdosed without harming aquarium inhabitants.

Key Features

• Live bacterial starter for biological filtration
• Helps prevent New Tank Syndrome
• Rapidly establishes beneficial bacteria colonies
• Breaks down organic waste, ammonia, nitrite, and nitrate
• Contains aerobic, anaerobic, and facultative bacteria
• Free from hydrogen sulphide-producing bacteria
• Safe for fish, shrimp, corals, invertebrates, and aquatic plants
• Cannot be overdosed
• Suitable for freshwater and marine aquariums
• Bottle size: 250 ml

Benefits

• Accelerates biological filter maturation
• Supports a stable nitrogen cycle
• Helps maintain healthier water quality
• Ideal after water changes, filter cleaning, medication, or adding new livestock
• Reliable performance across a wide range of water conditions

Directions for Use

New Aquarium Setup

Day 1

• Add 5 ml per 40 litres of aquarium water.

Days 2–7

• Add 5 ml per 80 litres daily.

Fish and other aquarium inhabitants may be introduced during this period.

Ongoing Maintenance

Add 5 ml per 40 litres:

• Once each month
• After water changes
• After filter cleaning
• When introducing new fish or other livestock
• After completing medication treatments

Technical Specifications

• Brand: Seachem
• Product: Stability
• Volume: 250 ml
• Type: Biological filter starter
• Suitable for:
  • Freshwater aquariums
  • Marine aquariums