Customer Reviews

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

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100% of reviewersrecommend this product

Rating: 4.8 of 5 stars 4.9 / 5

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API Stress Zyme Freshwater & Saltwater Aquarium Water Cleaner

API Stress Zyme Freshwater & Saltwater Aquarium Water Cleaner

  • Most Helpful Positive Review

    Read All 43 Positive Reviews

    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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  • Most Helpful Critical Review

    Broken lid when pecking no parts in sealed box.

    By Illba on Dec 7, 2019

    In the past I was happy in your company now I'am not happy.

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44 Reviews

Showing 1-10 of 44 Reviews

  • 5 out of 5 stars

    Stress Zyme

    By on

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

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  • 5 out of 5 stars

    Great Product!

    By on

    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

    works great

    By on 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

    Good product

    By on

    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 on

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

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  • 5 out of 5 stars

    Great stuff

    By on

    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

    Amazing Prouduct!!

    By on

    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

    Great addition to tank maintenance

    By on

    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

    Essential for balance

    By on

    This is a long time favorite to keep my fish tank balanced and healthy!

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  • 5 out of 5 stars

    A must have

    By on

    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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