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🧪 Transform your tank into a thriving aquatic masterpiece!
API Stress Zyme is a 118 ml liquid solution containing over 300 million live bacteria per teaspoon that naturally consumes sludge and organic debris in both freshwater and saltwater aquariums. Designed for weekly use, it maintains a healthy biological filter, reduces harmful waste buildup, and keeps gravel and decorations clean, significantly cutting down aquarium maintenance time. Trusted for over 50 years, API’s formula supports a balanced, vibrant aquatic environment for all fish species.
| ASIN | B0002AQLJW |
| Allergen Information | Apple Free |
| Best Sellers Rank | 4,754 in Pet Supplies ( See Top 100 in Pet Supplies ) 54 in Aquarium Water Treatments |
| Brand | API |
| Brand Name | API |
| Country Of Origin | United Kingdom |
| Customer Reviews | 4.7 out of 5 stars 11,811 Reviews |
| Global Trade Identification Number | 00317163040560 |
| Item Form | Liquid |
| Item Type Name | Aquarium Sludge Remover |
| Item Weight | 136.08 Grams |
| Item form | Liquid |
| Item weight | 136.08 Grams |
| Liquid Volume | 4 Fluid Ounces |
| Liquid volume | 4 Fluid Ounces |
| Manufacturer | API |
| Manufacturer Part Number | 56C |
| Model Number | 56C |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pet Type | Fish |
| Target Species | Fish |
| UPC | 317163040560 |
| Unit Count | 1 count |
| Unit count | 1 count |
J**Z
Great product
Love this product. Aside from being effective it is cheaper than others.
G**V
Very good
Good
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.
A**J
Works
Bit pricey but works for regular use
S**.
Tank treatment
Good value for money
S**N
Great item
Have used this product religiously on my water changes and don't ever see that changing
B**N
Many thanks
Great product
O**.
Combined with regular water changes this product keeps things nice and clean
I was sceptical at first as it's hard to prove that it was doing much as I began using it after resurrecting a tank that was left to wallow by a colleague. How does one know which of the cleaning products and techniques are keeping things clean? I recently ran out of this and it’s taken me about a month to get round to getting some more. In that period the tank hasn’t turned into a jungle but I have noticed that it is slightly dirtier than when I was regularly using this. The cap has a built in measurer, I use a cap full once a week on a medium 50 litre tank with 1 goldfish and 3 snails in. Combined with regular water changes this product keeps things nice and clean, and even when I’ve missed water changes – using this helps maintain a reasonable level of cleanliness. It’s priced the same on here (£7.98 at time of writing) as the smaller bottle is in my local pet store so no complaints there.
M**N
Good price to quantity ratio
Bought the bigger bottle for my 3 aquariums. Seems to do as it claims, the water is always clear.
H**I
If you have fish you need this
Works great to keep a tank clean and fish healthy. Use it every water change and weekly. Wouldn’t do without it. Definitely cleaning the tank less now
S**M
El agua no se enturbia
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
Suggest
I love the brand
D**S
So far, so good
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.
Trustpilot
3 days ago
2 days ago