API Stress Zyme Freshwater & Saltwater Aquarium Water Cleaner, slide 1 of 1

API Stress Zyme Freshwater & Saltwater Aquarium Water Cleaner

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Description

Help create a naturally balanced aquarium with API Stress Zyme Aquarium Water Conditioner. Waste, sludge and uneaten food can cause toxic junk, like ammonia and nitrite, to form in your tank. But this water conditioner contains over 300 million live bacteria per teaspoonful to help consume sludge and organic debris, working to keep your gravel and glass clean naturally. Use it weekly in fresh and saltwater aquariums to maintain a strong biological filter and a healthy, clean home for your finned friends.

Key Benefits
  • Keeps aquarium clean by reducing aquarium maintenance.
  • Contains over 300 million live bacteria per teaspoonful to consume sludge and organic debris, keeping gravel and glass clean naturally.
  • Use it weekly in fresh and saltwater aquariums to maintain a strong biological filter and a healthy, clean aquarium.
  • All natural formula adds beneficial bacteria for a healthier aquarium.
  • Helps boost the natural aquarium cycle.
Precautions

HAZARDS TO HUMANS: Keep from freezing. Do not store above 120° F (49°C). Keep out of reach of children.
Keep from freezing. Do not store above 120 degrees F (49 degrees C).

Special Note

  • 8-oz bottle treats up to 470 gallons.
  • 16-oz bottle treats up to 940 gallons.
  • 64-oz bottle treats up to 3786 gallons.
  • 1-gal treats up to 7600 gallons.

See all items by API

  • Item Number
    94508
  • Aquarium Type
    Freshwater, Saltwater
  • Fish Type
    Tropical Freshwater, Betta, Cichlid, Goldfish, Marine Fish, Marine Invertebrate, Bottom Feeder
  • Product Form
    Liquid
Instructions

Use the API Dosing Cap on the bottle. Shake well. To maintain a clean, healthy aquarium: add 1 tsp. (5ml) per 10 U.S. gallons of water weekly.

FAQ

Do any of your larger bottle sizes of API STRESS ZYME include a pump?

No, this API STRESS ZYME does not include an option with a pump.

Can I use API QUICK START and API STRESS ZYME at the same time?

Yes, these API products can be combined.

Can API STRESS ZYME be added while fish are in the tank?

API STRESS ZYME can be added while fish are in the tank.

Can API STRESS ZYME be used safely with catfish and other bottom feeders?

API STRESS ZYME is safe for use with catfish and bottom feeders.

How is API MARINE STRESS ZYME different from API MARINE STRESS COAT?

API MARINE STRESS ZYME is not a tap water dechlorinator, like API STRESS COAT. Instead, it works to reduce aquarium maintenance over time, consuming sludge to keep gravel clean and adding beneficial bacteria to boost the natural aquarium cycle.

When should I use API MARINE STRESS ZYME?

You may use API MARINE STRESS ZYME weekly, but especially whenever you perform a 25% water change in your aquarium in order to replace beneficial bacteria. This will ensure that you aquarium cycle continues to function normally for your fish.

Rating: 4.8 of 5 stars 44 Reviews 44 Reviews 4.9 out of 5 Stars

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Rating: 4.8 of 5 stars 4.9 / 5

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44 Reviews

Showing 1-10 of 44 Reviews

  • 5 out of 5 stars

    Great Product!

    By Rebeljim on Jul 28, 2021

    I use API Stress Zyme Freshwater in all of my 4 tanks after water changes! It helps maintain the good bacteria levels so the water remains clear. I highly recommend this product.

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  • 5 out of 5 stars

    Stress Zyme

    By Maintenance on Sep 6, 2021

    Great product.! I use it for starting a new aquarium. Chewy delivered quickly.

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  • 5 out of 5 stars

    works great

    By petsRgreat on May 26, 2021 top500Contributor

    I use this once a week and it works great. Keeps water clear. Waste in gravel is broken down and waste in filter and medium is kept to a minimal.

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  • 5 out of 5 stars

    Great stuff

    By Midgie on Feb 8, 2021

    Tried and true, as long as your properly cycle your tanks and just use this as a boost everything is great. I use it regularly and in the place of their quick start product (when setting up a new tank). Give it a try, it can't hurt!

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  • 5 out of 5 stars

    Good product

    By Georgiaoutlaw on Feb 17, 2021

    Working so far my fish are still alive they are swimming and eating as normal as I think they should

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  • 5 out of 5 stars

    Stresszyme

    By Mark on Feb 14, 2021

    Works good, keeps fish alive, tank stays cleaner, all around good product.

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  • 5 out of 5 stars

    Great addition to tank maintenance

    By Liz2981 on Oct 19, 2020

    I have several fish tanks that I take care of at my workplace and this has been a great addition to regular tank maintenance. If the tank is looking a little dirty, I just put some of this in there and it clears up the sludge.

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  • 5 out of 5 stars

    Amazing Prouduct!!

    By esinshreyas on Nov 14, 2020

    I Got This For My 150 Gallon Tank and it looked Amazing my nitrates went down and there was less algae would definitely recommend this product.

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  • 5 out of 5 stars

    A must have

    By rick on Jul 4, 2020

    This is an absolute must have for weekly water changes. Using stress zyme with stress coat when changing water is an absolute must!! It keeps my aquariums clean,dramatically reduces sludge in the substrate,and just makes for a healthy environment for fish. One cap full per 20 gallons of water or a half of cap full for 10 gallons makes measuring a breeze... Api is the only way to go when buying freshwater conditioners!! And chewy makes it affordable and easy to get with fast free shipping! Thank you chewy

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  • 5 out of 5 stars

    fish love it

    By allieazalea on Jun 26, 2020

    You can never put enough of this in. I wish they would specify the difference between this one and the marine zyme. They both say saltwater. I’m going to be trying the other next time.

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