Had the fresh water tank about one month cant seem get the nitrite level down, any suggestion please.

Be patient. Mine took 6 months before maturing. Have you put fish in already? pooing, too much food etc can cause nitrate. Youncan get various nitrate absorbers which helps. I have now kept fish for 3 years and still occasionally get nitrate problems. Change water by 25% and keep this up until clear of nitrate, also cut down on food. whatever you put on your hands can also cause problems, w/in liquid ,moisteriser etc. Hope this is of help, but above all, patience.

How much should i use in 200 litre tank? i’m not very good when it comes to chemical measurements. and do you add when weekly water change? thank you

You need follow the directions on the back of the bottle as you would for medicine. The instructions are clear. You can use it weekly but it all depends on your tank. Ideally, test your water once a week and then decide. I use it once a month.

Amazon prime stated that this would be delivered tomorrow- as they always do. But they’ve given me a delivery date in a few days- help!!! Why??

transport dealys, out of stock, damag/missing orders, they dont like you ... lots of reasons.

Api Stress Zyme | Desertcart Cayman Islands

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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CI$55

Duties & taxes included

In stock

Sold byAmazon Cayman IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cayman Islands.

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Description

🧪 Transform sludge into sparkle—your aquarium’s secret weapon!

EFFORTLESS WEEKLY MAINTENANCE - Just 5ml per 38L weekly keeps gravel, decorations, and glass naturally clean—spend less time scrubbing and more time admiring.
TRUSTED LEGACY OF AQUARIUM CARE - Backed by over 50 years of API innovation, ensuring reliable, research-driven results for your aquatic pets.
STRENGTHEN YOUR BIOLOGICAL FILTER - Regular use enhances the natural filtration cycle, promoting a healthier, more stable aquatic environment for your fish.
UNIVERSAL FRESH SALTWATER SOLUTION - Formulated to work seamlessly in both freshwater and saltwater aquariums, supporting diverse aquatic ecosystems.
BOOST YOUR AQUARIUMS NATURAL BALANCE - Over 300 million live bacteria per teaspoon actively consume sludge and organic waste, reducing harmful toxins like ammonia and nitrites.

API Stress Zyme Cleaning Solution is a 473 ml liquid formula containing over 300 million live beneficial bacteria per teaspoon that naturally consumes sludge and organic debris in freshwater and saltwater aquariums. Designed for weekly use, it reduces harmful toxins, maintains clean gravel and decorations, and strengthens the biological filter, making aquarium maintenance effortless and promoting a healthy aquatic environment.

Specifications

ASIN	B000255N3W
Allergen Information	Apple Free
Best Sellers Rank	4,346 in Pet Supplies ( See Top 100 in Pet Supplies ) 36 in Aquarium Water Treatments
Brand Name	API
Customer Reviews	4.7 4.7 out of 5 stars (11,848)
Global Trade Identification Number	00317163160565
Item Form	Liquid
Item Type Name	API STRESS ZYME CLEANING SOLUTION 473ML BOTTLE FOR FRESHWATER AND SALINE AQUARIUM
Item Weight	544.31 Grams
Liquid Volume	473 Millilitres
Manufacturer	API
Manufacturer Part Number	56E
Model Number	56E
Number of Items	1
Number of Packs	1
Pet Type	Fish
Target Species	Fish
UPC	317163160565
Unit Count	473.0 millilitre

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CI$55

Duties & taxes included

In stock

Sold byAmazon Cayman IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cayman Islands.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

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API STRESS ZYME

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Description

Specifications

Common Questions