API Stress Zyme 1.89l
adds beneficial bacteria to break down and consume organic matter to help keep the aquarium clean. The bacteria in Stress Zyme is uniquely suited to consume aquarium sludge, and keep the gravel clean. Contains over 300 million live bacteria per teaspoonful. Breaks down organic compounds that cause dangerous conditions such as ammonia and nitrite poisoning and low oxygen levels. These bacteria improve the development of the biological filter and help clean a dirty aquarium. Making Stress Zyme a part of regular care assures an active biological filter, cleaner aquarium, healthier fish and good water quality.
- Contains live bacteria to consume sludge and reduce aquarium maintenance.
- Keeps aquariums clean.
- Improves biological filter development.
| Specification | Value |
|---|---|
| Volume | 1.89 liters |
| Bacteria Count | Over 300 million per teaspoonful |
| Function | Breaks down organic matter, sludge, ammonia, nitrite |
FAQ
How long does it take to see results after adding Stress Zyme to the aquarium?
Results may vary depending on tank conditions, but visible improvements in water clarity and reduced sludge typically appear within 1 to 2 weeks of regular use.
Can Stress Zyme be used in both freshwater and saltwater aquariums?
Stress Zyme is designed for freshwater aquariums. It is not recommended for use in saltwater systems.
Is the bacteria in Stress Zyme active immediately after opening?
Yes, the live bacteria remain active when stored properly in a cool, dry place. Once added to the aquarium, they begin working to break down organic matter.

Austin Parsons –
I’ve used Stress Zyme for three months now and notice a significant reduction in sludge buildup. My tank is cleaner and my fish seem more active. The product works well with my existing filter setup.
Natalie Peters –
It helps maintain better water quality. I add it every two weeks and see less ammonia spikes. The bacteria seem to establish quickly in the gravel.
Anne Wright –
After switching from a regular water change routine to using Stress Zyme, my aquarium has become much easier to maintain. The water clarity has improved noticeably.
Kevin Peters –
It’s effective but I had to mix it thoroughly before adding. I noticed a slight delay in visible results, but it’s still better than nothing.