Sign in to unlock exclusive benefits
30-Day Free Returns*
The API Stress Zyme Supplement is a beneficial product designed to enhance the health and well-being of your aquarium ecosystem. This marine supplement contains a powerful blend of live bacteria that aids in the breakdown of organic waste, such as fish waste, uneaten food, and decaying plants. By accelerating the natural biological processes, API Stress Zyme helps to maintain a clean and healthy environment for your fish and other aquatic inhabitants.
Freshwater, Saltwater
Tropical Freshwater, Betta, Cichlid, Goldfish, Marine Fish, Marine Invertebrate, Bottom Feeder
Aquatic Turtle, Frog, Hermit Crab
Liquid
Direction To Use:
Shake Well. To maintain a clean, healthy aquarium: add 1 tsp. (5 ml) per 10 U.S. gallons (38 L) or 1/2 cup (120 ml) for each 240 U.S. gallons (912 L) of water weekly. For new aquariums, to help boost the biological filter: double the dose, use at start up, and for 2 additional weeks.

This supplement is effective and better of than local brand
Our Betta seems happy now after adding this supplement along with their food.
Best quality and affordable too
I use Stress Zyme in my tank. I just happened to stumble upon this website & I searched for it & they had it. This is a great size bottle & it should last for a while. Company was fantastic, shipping & received very quickly & the price didn’t break the bank. Totally recommend this company & will definitely order items from them again. A+++ 😀
Use code: WELCOME10
To Get Instant 10% Discount on Your First Order!
Screen reader optimized
Clear flashes & reduces color
More focus & fewer distractions
Assist with reading & focusing
Enhances website's visuals
Enter your email to claim your exclusive welcome discount.
For first-time customers only. We will send a verification code to your email.
We sent a 6-digit code to
Your code is ready to use. Apply it at checkout.
—
This referral discount is only available for first-time customers. Thanks for being a loyal shopper!
Loading subscription options…