






🌊 Dive into Effortless Aquarium Bliss!
API STRESS ZYME is a powerful 1-ounce cleaning solution designed for both freshwater and saltwater aquariums. It effectively reduces maintenance by consuming sludge, adding beneficial bacteria, and promoting a clean, healthy aquatic environment when used weekly.













K**R
Great product
Works great! Simple directions and great value for the price.
S**R
10/10
Works really well with my tank keeping the water clear and helping reduce sludge on the filters which helps maintenance and keeping it running longer
A**6
Amazing product. Really works.
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.
J**N
Great for my aquatic frogs
I use this religiously with my African dwarf frogs! They are still kicking strong after 3 years so it must be working!
H**I
The fish are doing well
I have been using this enzyme solution along with the API chlorine solution for about a year and seems to be working fine. The fish has survived :) It’s a little bit on pricy side.
G**O
Clear water
It works great. Keep my water crystal clear.
D**E
Good value.
It works.
A**S
Good 👍
Cleans good fish tank.
K**A
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.
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