

🧪 Transform your tank into a thriving aquatic ecosystem effortlessly!
API STRESS ZYME is a 473 ml liquid aquarium cleaning solution packed with over 300 million live bacteria per teaspoon. Designed for both freshwater and saltwater tanks, it naturally consumes sludge and organic waste, reducing maintenance and promoting a healthy biological filter. Trusted for over 50 years, this weekly treatment keeps your aquarium clean, balanced, and vibrant with minimal effort.











| ASIN | B000255N3W |
| Allergen Information | Apple Free |
| Best Sellers Rank | 3,283 in Pet Supplies ( See Top 100 in Pet Supplies ) 30 in Aquarium Water Treatments |
| Brand Name | API |
| Country Of Origin | China |
| Customer Reviews | 4.7 4.7 out of 5 stars (11,693) |
| Global Trade Identification Number | 00317163160565 |
| Item Form | Liquid |
| Item Type Name | API STRESS ZYME CLEANING SOLUTION 473ML BOTTLE FOR FRESHWATER AND SALINE AQUARIUM |
| Item Weight | 544.31 Grams |
| Liquid Volume | 473 Millilitres |
| Manufacturer | API |
| Manufacturer Part Number | 56E |
| Model Number | 56E |
| Target Species | Fish |
| UPC | 317163160565 |
| Unit Count | 473.0 millilitre |
K**A
Useful for starting a new tank
It simply replaces all those starter kits as you can double the dose for a new aquarium to boost the biological filter. What a brilliant product! My guppies are happy with this.
N**N
Fish
Good value for money
S**N
Great item
Have used this product religiously on my water changes and don't ever see that changing
A**J
Works
Bit pricey but works for regular use
A**.
API Stress Zyme+
Been using this for years. No problems and does it's job in conjunction with API water conditioner.
B**N
Many thanks
Great product
J**Z
Great product
Love this product. Aside from being effective it is cheaper than others.
G**V
Very good
Good
S**M
Producto muy recomendable!el agua no se enturbia para nada,hay que tener un buen filtro,el mio no funciona bien y el agua no esta sucia pero huele mal por el filtrado,el producto es buenisimo.
S**A
I love the brand
D**S
I was having some issues controlling nitrites. Used it, two days later, down to zero and stable. I don't see any issues with my Ph, fish, snail, shrimp and plants. I'll keep dosing the water as instructed.
S**E
My regular go to solution after water change.. this has helped my ponds as well as big tanks for maintaining good bacterial colonies in sump and canister filters
T**I
Very good
Trustpilot
4 days ago
1 month ago