API STRESS ZYME by PET PACIFIC
API STRESS ZYME keeps your aquarium clean by using live bacteria to consume sludge and maintain a healthy environment for your fish.
How It Works
The product introduces beneficial bacteria that naturally break down organic waste such as sludge, uneaten food, and fish waste. This helps reduce harmful substances in the water and supports a balanced biological filter.
Key Benefits
- Reduces sludge buildup in tanks
- Supports a stable and healthy aquatic environment
- Helps maintain water clarity and quality
| Specification | Details |
|---|---|
| Form | Granular |
| Quantity | 100g |
| Usage | Add to filter media or directly into the aquarium water |
| Storage | Keep in a cool, dry place away from direct sunlight |
FAQ
How often should I add API STRESS ZYME to my aquarium?
Add API STRESS ZYME once every 2 to 4 weeks, depending on tank size and fish population. Follow the instructions on the packaging for best results.
Can I use API STRESS ZYME in both freshwater and saltwater aquariums?
API STRESS ZYME is designed for freshwater aquariums. It is not recommended for use in saltwater systems.
Does API STRESS ZYME require any special equipment to work?
No special equipment is required. Simply add the granules to the filter media or directly into the aquarium water.

Frank Randall –
I’ve used API STRESS ZYME for three months now and noticed a significant reduction in sludge. My tank is much clearer and my fish seem more active. Easy to use and effective.
Charles Mackenzie –
The bacteria in this product work well in my 55-gallon freshwater tank. I added it once a month and saw better water clarity after a few weeks. Slight improvement in fish behavior.
Andrea Marshall –
After switching from a chemical cleaner to API STRESS ZYME, my tank has stayed cleaner without any harsh chemicals. The live bacteria are effective and the water quality has improved noticeably.