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Terms and Conditions Apply!
We can ship to any address in Australia and New Zealand. Note that there are restrictions on some products, and some products cannot be shipped to some locations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full kilo.
Seachem Stability is a premium, concentrated bacterial supplement formulated to establish and maintain a robust biological filter in both freshwater and marine aquariums. It contains a proprietary blend of live, heterotrophic bacteria that efficiently break down ammonia and nitrite, ensuring a safe, stable, and healthy aquatic environment. Ideal for both new setups and established tanks, Stability accelerates the nitrogen cycle and supports long-term water quality.
Concentrated beneficial bacteria – Rapidly colonize to maintain biological filtration efficiency
Promotes rapid cycling – Shortens the time required to establish a safe, fish-ready aquarium
Ammonia and nitrite reduction – Converts toxic waste into less harmful nitrate
Versatile use – Suitable for freshwater, marine, and reef systems
Safe for all aquatic life – Non-toxic to fish, invertebrates, and plants
Initial Dose for New Aquariums: Add 1 capful (5 mL) per 40 L (10 US gallons) daily for the first 7 days
Maintenance Dose for Established Aquariums: Add 1 capful (5 mL) per 80 L (20 US gallons) once a week
Safe to Add Fish: Fish can be introduced after the first few doses, but ammonia and nitrite should be monitored
Storage: Keep in a cool, dry place with the cap tightly sealed to preserve bacterial viability
50 mL and 100 mL – Ideal for small tanks or trial use
250 mL – Suitable for regular use in medium aquariums
500 mL – Designed for ongoing support in medium to large tanks
1 L – Bulk option for large aquariums or frequent use
2 L – For aquarists with multiple tanks or heavy stocking
4 L – Professional or large-scale use
Perfect for new tank setups to prevent ammonia and nitrite spikes
Maintain weekly dosing in established aquariums for consistent bacterial balance
Monitor water parameters regularly for optimal results
Combine with Seachem Prime for detoxifying harmful compounds and Seachem Safe for remineralization to create the ideal aquatic environment
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