API Stress Zyme
API Stress Zyme contains over 300 million live bacteria per teaspoonful to consume sludge and reduce aquarium maintenance, keeping your aquarium clean and improving the natural aquarium cycle. Making Stress Zyme part of your tank’s regular upkeep routine assures an active biological filter, a cleaner aquarium, healthier fish, and good water quality. This product may be used in both fresh and saltwater aquariums.
Directions for Use
Add 1 tsp. per 10 gallons of water weekly.
Product Specifications
| Component | Detail |
|---|---|
| Live Bacteria Count | Over 300 million per teaspoonful |
| Usage Frequency | Weekly |
| Water Type | Freshwater and saltwater |
| Recommended Dosage | 1 teaspoon per 10 gallons |
FAQ
Can I use API Stress Zyme in a new aquarium setup?
Yes, API Stress Zyme can be used in new aquariums to help establish a healthy biological filter and reduce sludge buildup.
How long does it take to see improvement in water quality?
Improvements in water clarity and fish health may be noticed within a few weeks of consistent weekly use.
Is API Stress Zyme safe for all fish species?
Yes, it is safe for use in both freshwater and saltwater aquariums and is suitable for most fish species.

Nathan Wallace –
I’ve used API Stress Zyme for three months now and notice much less sludge in my tank. My fish seem more active and the water is clearer. I add one teaspoon weekly as directed and it’s easy to use.
Liam Vance –
The product works well in my 55-gallon freshwater tank. I see a noticeable reduction in algae and debris. It’s a simple addition to my weekly maintenance routine.
Christian Simpson –
After switching from a chemical cleaner to API Stress Zyme, my tank has become much cleaner without any fish stress. The bacteria help break down waste naturally.