Become a credit card member today!API Stress Zyme, 16 oz.
Description
With API Stress Zyme, your aquarium will be the envy of all your fish friends! This little bottle packs a powerful punch with over 300 million live bacteria per teaspoonful. Say goodbye to dangerous conditions like ammonia and nitrite poisoning and low oxygen levels, thanks to API Stress Zyme's ability to break down organic compounds. And don't worry about refrigeration - this stuff is good to go straight from the shelf.
- - Improves your biological filter, meaning healthier fish and better water quality
- - Keeps your aquarium clean and naturally balanced - no more worrying about murky, unpleasant water
- - Available in both 4 and 16 oz bottles, so you can choose the perfect size for your setup
- - Made right here in the USA - you can trust that it's high-quality and effective
- - Great for use in both fresh and saltwater aquariums
- - Easy to use when setting up or maintaining your aquarium - just add API Stress Zyme as directed and let it do its magic!
Please note that the product information displayed is provided by manufacturers, suppliers and other third parties and is not independently verified by Petco.
Specifications
| SKU | 347221 |
|---|---|
| Primary Brand | API |
| Days to Ship | Ships Next Business Day |
| Personalized Item flag | No |
|---|
| Volume | 16 FZ |
|---|
Shake well. New Aquariums First, use Stress Coat to remove chlorine. Next on the 1st, 7th and 14th days, add 10 ml of Stress Zyme per 10 U.S.gallons (38 L) of water weekly. Thereafter and for Existing Aquariums To maintain good water quality and healthy biological filtration, add 5 ml of Stress Zyme per 10 U.S. gallons (38 L) of water weekly.
Description
With API Stress Zyme, your aquarium will be the envy of all your fish friends! This little bottle packs a powerful punch with over 300 million live bacteria per teaspoonful. Say goodbye to dangerous conditions like ammonia and nitrite poisoning and low oxygen levels, thanks to API Stress Zyme's ability to break down organic compounds. And don't worry about refrigeration - this stuff is good to go straight from the shelf.
- - Improves your biological filter, meaning healthier fish and better water quality
- - Keeps your aquarium clean and naturally balanced - no more worrying about murky, unpleasant water
- - Available in both 4 and 16 oz bottles, so you can choose the perfect size for your setup
- - Made right here in the USA - you can trust that it's high-quality and effective
- - Great for use in both fresh and saltwater aquariums
- - Easy to use when setting up or maintaining your aquarium - just add API Stress Zyme as directed and let it do its magic!
Please note that the product information displayed is provided by manufacturers, suppliers and other third parties and is not independently verified by Petco.
Specifications
| SKU | 347221 |
|---|---|
| Primary Brand | API |
| Days to Ship | Ships Next Business Day |
Reviews
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Customers say
Customers overwhelmingly praise this product for maintaining crystal-clear water and promoting fish health. Most report noticeably sparkling tanks within days and credit it with reducing manual cleaning frequency. Reviewers consistently describe fish as more active with reduced stress during water changes, and many highlight its role in stabilizing ammonia and nitrite levels while supporting beneficial bacteria. Long-term users spanning decades emphasize deep loyalty and habitual use. A small number report no noticeable effect or prefer alternatives, though most customers consider it an indispensable aquarium maintenance essential.
Most Helpful Favorable Review
Great product
sacichlids
13 years ago
I am getting back into my tropical fish hobby after almost 8 years and I must sa...
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31 PEOPLE FOUND THIS HELPFUL
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4
Most Helpful Critical Review
Big waste of money.
tomcat1264
15 years ago
After my tank water had shown high levels of ammonia on the test It was recommen...
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18 PEOPLE FOUND THIS HELPFUL
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3
2
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1
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29 Ratings-Only Reviews
Helps keep my fish tank clean and easy to use!
Originally posted on apifishcare.com
Keep your tank crystal clear and completely safe for your fish
Originally posted on apifishcare.com
Keeps aquarium looking great
Originally posted on apifishcare.com
It works wonders in your pond!
Originally posted on apifishcare.com
Healthier and clean environment for fish
Originally posted on apifishcare.com
Great
Originally posted on apifishcare.com
Easy to Use for Aquarium Care
Originally posted on apifishcare.com
Nice clear water after treatment
Originally posted on apifishcare.com
Questions
Are they count as water conditioner?
- API Stress Zyme is not a water conditioner. We would recommend to use a water conditioner like API Stress Coat or API Tap Water Conditioner as well to the API Stress Zyme.
Helpful?
Does anyone know why a lot of these products have instructions that say use this much for every 38L of water? I mean why can't they just include a per gallon amount too? It's kinda annoying to have to recalculate it myself.
- Simple answer: The directions on the label state use 5ml per 10 gallons. The bottle cap is incremented 5ml and 10 ml.
Helpful?
I have a bottle of stresszyme and it’s never been opened before but had expired in 2017 is it okay to use or should I throw it away
- I would get rid of it.
Helpful?
Is this a water conditioner?
- Thank you for your inquiry. This product does contain water conditioner.
Helpful?
I have salkwater fish can I usd this when I water change
- I have marine reef tank can I use this when I do water change
Helpful?
Stress zyme and quick start
- Thank you for your question. The Stress Zyme would be similar to the Quick Start. We recommend using one or the other but not both together.
Helpful?
issues with cycled
- Thank you for your question. If you need an answer right away, and don’t wish to wait for another customer to respond, please feel free to contact our Customer Service Department at 1-800-381-7179 as further infomation will be need to assist you.
Helpful?
how long is the exiration date on the stress zyme
- Thank you for your question. Since the expiration date does change we do not want to post this information on our website. We will be sending this information to you via the email that you provided us with. cjm
Helpful?
Adding extra StressZyme and/or StressCoat
- Thank you for your question. Please contact our Customer Service Department at 1-800-381-7179 or email Customerservice@DrsFosterSmith.com as more information is needed to better answer your question. ajl
Helpful?
Is it safe around snails
- "safe for snails":
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