Seachem Stability aquarium supplement bottle on a white background
Seachem Stability, view 2

Seachem Stability

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$100.00 away from free WA delivery Free delivery over $100 in WA ($150 elsewhere in Australia).
Free pickup in KenwickOpen Tue to Sat, 12pm to 6pm

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About this product

Ensure a Healthy, Thriving Aquarium with Stability

Stability 500mL is the ultimate solution for rapidly and safely establishing the biofilter in both freshwater and marine aquariums, effectively preventing the number one cause of fish death: "new tank syndrome". This advanced formula contains a unique blend of aerobic, anaerobic, and facultative bacteria that efficiently break down waste organics, ammonia, nitrite, and nitrate, ensuring a stable and healthy environment for your aquatic life.

Why Stability is the Best Choice for Your Aquarium

Unlike competing products, the bacteria used in Stability are non-sulphur fixing and will never produce toxic hydrogen sulphide. This makes it safe for all aquatic organisms, including plants, and removes the risk of harmful overuse. Stability is the result of over a decade of research and development, representing the most advanced biological management technology currently available.

Most bacterial products on the market contain unstable bacteria that only thrive within very specific conditions, such as temperature, pH, and organic loads. When these parameters fluctuate, the bacteria in those products die off quickly. Stability, however, contains specially developed bacteria strains that thrive in a broad range of conditions. This ensures that, even when conditions in your tank change, Stability will continue to function effectively, working harder and growing faster as needed.

The bacterial strains in Stability include both nitrifying and denitrifying bacteria, working together to support the entire nitrogen cycle. With facultative bacteria that can adapt to both aerobic and anaerobic conditions, Stability provides comprehensive filtration, unlike any other product on the market.

Safe for All Aquatic Life

Stability is completely harmless to fish, invertebrates, and aquatic plants. You can use it with confidence, knowing it will not harm your tank’s ecosystem. Its unique, non-toxic formulation ensures your aquarium remains healthy and balanced without the risk of dangerous side effects.

How to Use Stability 500mL

For new aquariums, add 1 capful (5mL) for every 40L (10 gallons) on the first day. For the next 7 days, dose with 1 capful for every 80L (20 gallons) of water daily. After the initial 7-day period, you can introduce fish and other aquatic species, as long as the dosage is maintained. For ongoing biofilter performance, use 1 capful per 40L (10 gallons) once a month, with each water change, or whenever introducing new fish or medicating the aquarium.

Keep Your Aquarium Thriving with Stability

Stability 500mL offers an easy and effective way to keep your aquarium’s biofilter working at its best. Prevent the common pitfalls of tank cycling and ensure a safe, clean environment for your fish and plants. Available now at School of Scape!

Delivery and returns

Free delivery over $100 in WA and $150 elsewhere in Australia. Free pickup from our Kenwick store, Tue to Sat, 12pm to 6pm.

Returns policy

  • 5 stars: 23 (88%)
  • 4 stars: 2 (8%)
  • 3 stars: 1 (4%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
S
Shane Parker
Solid choice

Does the job every time without fuss. Lasts ages.

S
Samuel Ellis
Great product

Reliable and effective. Got my new tank cycled without any issues.

B
Beau Floyd
Value for money

The concentration makes this great value. Works a treat.

L
Luke Banks
Great buy

Concentrated, effective and good value. Highly recommend.

K
Kate Harris
Top product

Best in its category I've used. A little treats a lot.

T
Tegan Webb
Essential for new tanks

Made starting my aquarium so much easier. Dosed as directed and the cycle came along nicely.

W
Wayne Smith
Excellent

Established my cycle nicely and the fish settled in well. Great buy.

J
Jade Lyons
Reliable additive

Consistent results and gentle on the tank. Will repurchase.

G
Greg Baker
Good stuff

Does what it claims and keeps my tank stable. Recommend.

G
Greg King
Highly recommend

Used it during setup and after water changes. My parameters stayed stable throughout.

T
Travis Riley
Does what it says

Got my bacteria going fast and the fish are stress free. No complaints.

C
Charli Hayes
Good value

Concentrated so a bottle lasts a long time. Great price for the quality.

A
Aria Scott
Reliable

Never let me down. Helped establish my beneficial bacteria quickly.

M
Mason Lee
Recommend

Effective, concentrated and great value.

T
Tegan Holmes
Smooth cycle

My new tank settled without any spikes. Brilliant product.

A
Ava Burton
Perfect for cycling

Got my tank ready for fish faster than I expected. My go to now.

L
Lily Mason
Concentrated and effective

Only need a small amount. Lasts ages and works perfectly.

W
William Barrett
No fuss

Just works. Easy to dose and keeps things stable.

D
Dion Wood
Great addition

Helped my filter mature quickly and kept things stable. Quality product.

C
Cameron Ferguson
Very pleased

Effective and economical. Tank is healthier and more stable for it.

A
Amelia Smith
Happy with it

Easy to dose and effective. Lasts a long time too.

T
Tracey Collins
Does the job

Used it when setting up my new tank and the cycle established quickly. Easy to dose and effective.

L
Levi Knight
My go to

Switched to this and won't go back. Effective and economical.

C
Charlotte Mitchell
Easy to use

Clear dosing instructions and works as described. Happy with it.

E
Erin Phillips
Works perfectly

Fast acting and economical. My tank cycled smoothly.

B
Belinda Young
Works well

Easy to use and effective. Helped my tank settle quickly.