SEACHEM POND STABILITY 1L
This product is available for in-store pick-up only.
Product Overview
Pond Stability® rapidly and safely establishes the pond biofilter in new ponds, preventing fish deaths caused by incomplete biofilter cycling. It also helps prevent and reduce sludge buildup.
Key Benefits
- Contains a synergistic blend of aerobic, anaerobic, and facultative bacteria
- Facilitates breakdown of waste organics, ammonia, nitrite, and nitrate
- Non-sulfur fixing bacteria — does not produce toxic hydrogen sulfide
- Safe for all aquatic organisms and aquatic plants
- Can be used without risk of overuse
Formulation
| Component | Function |
|---|---|
| Aerobic Bacteria | Breaks down organic waste in oxygen-rich environments |
| Anaerobic Bacteria | Processes organic matter in oxygen-poor conditions |
| Facultative Bacteria | Adapts to both oxygen-rich and oxygen-poor conditions |
FAQ
How long does it take for Pond Stability® to establish a biofilter in a new pond?
Pond Stability® begins establishing the biofilter within days when added to a new pond. Full stabilization may take up to two weeks depending on pond size and conditions.
Can Pond Stability® be used in existing ponds with established filters?
Yes, it can be used in existing ponds to help reduce sludge buildup and support a balanced biological filter.
Is Pond Stability® safe for fish and plants?
Yes, it is completely harmless to all aquatic organisms and aquatic plants. The bacteria do not produce toxic hydrogen sulfide and are non-sulfur fixing.

Madeleine Carr –
Used Pond Stability in a new pond after setting up the water features. Fish stayed healthy without any ammonia spikes. The sludge level dropped noticeably within a week. Easy to mix and apply. No issues with fish or plants.
Lily Alsop –
Great product for new pond setups. Helped stabilize the filter quickly. Noticed less floating debris after a few days. Works well with my existing filtration system.
Pippa Russell –
After installing a new pond, I added Pond Stability and saw a significant improvement in water clarity. No fish deaths, and the water cycle stabilized within a week. Highly recommended.