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🧪 Transform your tank into a thriving aquatic oasis with every drop!
API STRESS ZYME is a 473 ml aquarium cleaning solution packed with over 300 million live beneficial bacteria per teaspoon. Designed for both freshwater and saltwater tanks, it naturally consumes sludge, fish waste, and organic debris to maintain a clean, healthy environment. With weekly use, it boosts the biological filter, reduces maintenance, and supports a balanced ecosystem, backed by over 50 years of API’s trusted aquatic care expertise.
| ASIN | B000255N3W |
| Allergen Information | Apple Free |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 2,959 in Pet Supplies ( See Top 100 in Pet Supplies ) 35 in Aquarium Water Treatments |
| Colour | multi natural |
| Customer Reviews | 4.7 4.7 out of 5 stars (11,653) |
| Date First Available | 1 Dec. 2006 |
| Item Form | Liquid |
| Item Weight | 544 g |
| Item model number | 56E |
| Number of Items | 1 |
| Pet Type | Fish |
| Product Dimensions | 25.4 x 25.4 x 25.4 cm; 544.31 g |
| Quantity | 1 |
| Size | 473 ml (Pack of 1) |
| Specific Uses | Indoor |
| Volume | 16 |
S**N
Great item
Have used this product religiously on my water changes and don't ever see that changing
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
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
G**V
Very good
Good
J**Z
Great product
Love this product. Aside from being effective it is cheaper than others.
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.
A**6
I use this weekly, RELIGIOUSLY. I do not miss a dose. This is my tank today, having not touched the filter in 18 months. (Fluval FX6 filled with only biohome filter media and polishing sponges.) I’ve only changed out the live plants when needed (pothos houseplant clippings) and used the magnetic algae glass scraper when needed. It’s a 75 gallon tank. I8 MONTHS!!! I highly recommend this product. Zero odor, zero nastiness.
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
Trustpilot
5 days ago
2 months ago