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Aquarium Water Treatments
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  6. Aquarium Water Treatments
  7. API Stress ZYME…
API

API Stress Zyme Aquarium Water Treatment 1 fl oz | Biological Filter Support in Fresh & Saltwater

API Stress Zyme Aquarium Water Treatment 1 fl oz | Biological Filter Support in Fresh & Saltwater - main product image
All-inclusive price — duties & taxes paid, no customs charges at delivery
₹470₹650

You save ₹180 (28%)

28% off the seller list price

Qty
API Stress ZYME Bacterial Cleaner 4 fl oz | Maintains Healthy Aquarium Water — 4 fl oz
4 fl oz
₹980
₹1,400
In Stock
API Stress ZYME Bacterial Cleaner 4 fl oz | Maintains Healthy Aquarium Water — 16 fl oz
16 fl oz
₹2,590
₹3,840
In Stock
API Stress ZYME Bacterial Cleaner 4 fl oz | Maintains Healthy Aquarium Water — API Stress Zyme Aquarium Water Treatment 1 fl oz | Biological Filter Support in Fresh & Saltwater
API Stress Zyme Aquarium Water Treatment 1 fl oz | Biological Filter Support in Fresh & Saltwater
₹470
₹650
In Stock

Estimated doorstep delivery by 16 Nov - 18 Nov from USA

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API Stress Zyme is a biological aquarium treatment supporting healthy water in freshwater and saltwater tanks. Contains over 300 million beneficial bacteria per teaspoon. Supports biological filtration, reduces maintenance, and promotes water quality. Imported from USA, arrives in 11-13 days with duties included.

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Support Healthy Aquarium Water at Low Cost

About this item

API Stress Zyme is a biological aquarium treatment supporting healthy water in freshwater and saltwater tanks. Contains over 300 million beneficial bacteria per teaspoon. Supports biological filtration, reduces maintenance, and promotes water quality. Imported from USA, arrives in 11-13 days with duties included.

About the range

API Stress ZYME is a bacterial cleaner designed for freshwater and saltwater aquariums, containing over 300 million live bacteria per teaspoon to naturally consume sludge and organic waste. It helps maintain a balanced environment, reducing aquarium maintenance and supporting a healthy biological cycle.

It works by breaking down fish waste, uneaten food, and sludge, keeping gravel, rocks, and glass clean. Regular use boosts beneficial bacteria, promoting water clarity and reducing harmful ammonia and nitrite levels. Many users report easier tank cleaning and healthier fish after consistent application.

Ideal for Indian aquarium hobbyists, API Stress ZYME arrives factory-sealed, with all duties included, and is suitable for use in diverse water conditions. Delivery typically takes 11-13 days from authorized US retailers, ensuring quality and authenticity.

Key Features

  • Contains one (1) API STRESS ZYME Freshwater and Saltwater Aquarium Water Cleaning Solution 4-Ounce Bottle
  • Keeps freshwater and saltwater aquariums clean and reduces maintenance
  • Consumes sludge to help keep gravel and decorations clean
  • Adds beneficial bacteria for a healthy aquarium
  • Use weekly to maintain a clean, healthy aquarium

Why choose this product

Research-Driven Aquarium Care

API Stress ZYME contains live bacteria formulated to boost the natural aquarium cycle. It reduces organic waste buildup, supporting water quality and fish vitality, backed by over 50 years of research and innovation.

Ideal for Indian Hobbyists

Designed for diverse water conditions common in India, API Stress ZYME arrives factory-sealed, with all duties paid, ensuring authentic quality and easy import from USA. Suitable for tropical, freshwater, and reef tanks, it simplifies aquarium maintenance for hobbyists and professionals alike.

How to use

  • Shake and Measure — Shake the bottle well. Using the dosing cap, add 5 ml per 10 gallons (38 L) of water weekly for optimal biological filtration.
  • Add to Aquarium — Pour directly into the tank or filter area. For new tanks, double the dose at start-up and continue for 2 weeks.
  • Maintain Weekly — Repeat weekly to support beneficial bacteria, water clarity, and fish health, reducing overall maintenance time.

Example scenarios

Typical situations where API Stress ZYME Bacterial Cleaner 4 fl oz | Maintains Healthy Aquarium Water helps — illustrative scenarios, not customer reviews.

1
Scenario 1
Illustrative example
Where it helps

Ravi from Mumbai has a 50-gallon freshwater tank, struggles with sludge buildup and frequent cleaning.

How this product helps

API Stress ZYME consumed sludge naturally, reducing cleaning frequency, saving ₹ on maintenance, with visible water clarity in 2 weeks.

Specifications

Composition

Live Bacteria CountOver 300 million per teaspoon

Usage

Serving Size5 ml per 10 gallons (38 L)
Cost per use₹470 per teaspoon
Shelf life after openingDoes Not Expire
Reapplication mathOne bottle lasts approximately 38 gallons at weekly dose
DirectionsUse weekly. Shake well. Add 5 ml per 10 gallons. Double dose at start-up for 2 weeks.
ContraindicationsNone specified
Allergens / irritantsContains live bacteria

How we compare

FeatureAPI Stress ZYMEOthers
Active Bacteria CountOver 300 million bacteria per teaspoonVaries by brand, often lower counts
Water CompatibilitySupports freshwater & saltwater tanksMostly freshwater, limited saltwater options
Application FrequencyWeekly use recommendedVaries, often less frequent
Duties & ImportAll duties included, factory-sealed, shipped from USAAvailable locally, often with additional taxes

Product details

SKUbdc8932
Selected optionAPI Stress Zyme Aquarium Water Treatment 1 fl oz | Biological Filter Support in Fresh & Saltwater
BrandAPI
MaterialPlastic
Pet Typefish

About API

API has over 50 years of experience creating innovative aquarium solutions, trusted worldwide for quality and research-backed products.

Compliance & Legal

This is a dietary supplement; not intended to diagnose, treat, cure or prevent any disease.

Customer Reviews

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FAQ, See What Others Asked

Is API Stress ZYME safe for all freshwater and saltwater aquariums?
Yes, API Stress ZYME is formulated for both freshwater and saltwater tanks, supporting biological filtration without harming fish or invertebrates. It contains beneficial bacteria that naturally consume sludge and organic waste, helping maintain water quality and fish health.
How often should I use API Stress ZYME in my aquarium?
Use API Stress ZYME weekly to support a balanced biological cycle. For new aquariums, double the dose at start-up and continue for 2 additional weeks for optimal results.
Can I use API Stress ZYME in a reef tank?
Yes, API Stress ZYME is suitable for reef aquariums, supporting beneficial bacteria and maintaining water clarity without disrupting delicate coral and invertebrates.
What is the best way to add API Stress ZYME?
Shake the bottle well, then add 5 ml per 10 gallons (38 L) of water using the dosing cap. Add directly to the tank or filter area for even distribution.
How does API Stress ZYME compare to other bacterial cleaners?
API Stress ZYME contains over 300 million live bacteria per teaspoon, making it highly effective at consuming sludge and organic waste, reducing maintenance time.

Frequently bought together

API Stress ZYME Bacterial Cleaner 4 fl oz | Maintains Healthy Aquarium Water

This item:

API Stress ZYME Bacterial Cleaner 4 fl oz | Maintains Healthy Aquarium Water

₹470

API Stress ZYME Bacterial Cleaner 4 fl oz | Maintains Healthy Aquarium Water

This item

API Stress ZYME Bacterial Cleaner 4 fl oz | Maintains Healthy Aquarium Water

₹470

Total price:

₹8,930

You save ₹3,330 (27%) Extra

3 items selected

3 items

₹8,930

You save ₹3,330 (27%) Extra

Product Comparison

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API Stress ZYME Bacterial Cleaner 4 fl oz | Maintains Healthy Aquarium Water
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Spec
Price
₹470
₹650
₹5,080
₹7,180
₹3,380
₹4,430
₹2,070
₹2,810
₹3,720
₹4,660
₹16,440
₹17,990
₹5,220
₹7,370
Brand NameAPISeachemTreatlyOutward HoundPoochPadLealchumrabbitgoo
Item FormLiquidN/AN/AN/AN/AN/AN/A
SourceUS RetailUS RetailUS RetailUS RetailUS RetailUS RetailUS Retail
Sold ByCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrow
Imported from USA
₹470₹650

You Save ₹180

Estimated doorstep delivery by 16 Nov - 18 Nov from USA
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Tracked from USA · duties included
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Your Order Journey: From Purchase to Doorstep

You Order
Place your order
USA Warehouse dispatch
Packed & shipped
International Air Shipping
Fast transit
Consignment to India Warehouse
Customs cleared
Doorstep delivery
Delivered to you
You Order
Place your order
USA Warehouse dispatch
Packed & shipped
International Air Shipping
Fast transit
Consignment to India Warehouse
Customs cleared
Doorstep delivery
Delivered to you

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vs
₹1,410+ (3× the price)
₹470 locked, all-in
Hard to get the original US version in India
Original US version, shipped to your door
Extra pay for Import Duties, GST, and forex fees
One price in INR, no customs charges at delivery
4–12 weeks · No tracking
11-13 days · live tracking
Grey market, no guarantee, no protection, no refund
Sourced from US retailers, India-verified, return available
Lost in transit = ₹0 back
Full protection included