how many gallons does this treat

The container comes with a soup about tablespoon sized and there is messing table on the container of how many scoops per 100 gallons. I have been using it once a week with 2 scoops and there's about 6 months worth in the container, by my guess. I hope this helps!

Hi my water is clear. But will this work for cleaning up a sludge spot in my pond that is about 4X4? Or should I go with a pellet sludge remover?

This product is excellent I use it with either API pond flush or Microbelift PL. A super self discovered secret is mix 2 parts liquid bacteria above with one part pond zyme to make a cookie dough consistency. Roll it into a ball and drop or toss into pond directly into dirtiest sludge spots in the bottom of your pond. We use this technique in show ponds at a pond outfitter. Tried and true for over the last year. Unplug this UV’s for at least a day. You can substitute half barley extract if you’re having an issue with string algae. I then supplement with whatever remaining liquid you need to add for the size of your pond.

I have a 600g pond. I dosed it last night. Water is still black. How long does this take to clear water?

I was not a fan of this products performance. I've not had Black problems before, but lots of Green especially in Spring. I think water changes and UV Sterilization unit was my clear water help!

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API POND-ZYME SLUDGE DESTROYER Pond Cleaner With Natural Pond Bacteria And Barley, 1-Pound Container

Product ID: 1423401

Details

Brand
API
Item Form
Stick
Item Weight
1 Pounds
Number of Packs
1
Unit Count
1 Count

⏳Bi-weekly dosing for effortless maintenance

🌾Barley-enhanced organic matter digestion

🦠Natural bacteria-powered sludge breakdown

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Description

🌿 Transform your pond into a crystal-clear oasis with nature’s own sludge destroyer!

LOW MAINTENANCE LUXURY - Reduces manual pond cleaning time so you can enjoy your serene water feature without the hassle.
TRUSTED LEGACY FORMULA - Backed by nearly 60 years of API expertise, delivering proven, safe, and effective pond care solutions.
SEASONAL REGULAR CARE - Strategically designed dosing schedule ensures your pond stays pristine from spring start-up to year-round maintenance.
ECO ACTIVE POND PURIFIER - Harnesses natural bacteria and barley to dissolve fish waste and pond sludge, keeping your water crystal clear.
CLOG FREE PUMPS FILTERS - Prevents organic build-up that can choke your pond’s filtration system, saving you costly repairs.

API POND-ZYME is a 1-pound pond sludge remover that uses natural bacteria and barley to break down fish waste, algae, leaves, and grass clippings. Designed for ornamental ponds, it reduces organic build-up that degrades water quality and clogs pumps. With a simple dosing schedule—twice weekly for two weeks at season start and end, then bi-weekly maintenance—this product minimizes pond upkeep while promoting a healthy aquatic environment. Trusted for nearly six decades, API POND-ZYME offers an eco-friendly, effective solution for maintaining beautiful, low-maintenance ponds.

Specifications

ASIN	B000OVCI2S
ASIN	B000OVCI2S
Allergen Information	Apple Free
Best Sellers Rank	#4,061 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #19 in Water Garden & Pond Treatment
Brand Name	API
Customer Reviews	4.3 4.3 out of 5 stars (4,924)
Date First Available	October 2, 2003
Department	Pond
Global Trade Identification Number	00317163021460
Is Discontinued By Manufacturer	No
Item Form	Stick
Item Type Name	Pond Sludge Remover
Item Weight	1 Pounds
Item model number	146B
Manufacturer	Mars Fishcare
Manufacturer	Mars Fishcare
Manufacturer Part Number	146B
Manufacturer recommended age	1 month and up
Model Number	146B
Pet Type	Fish
Product Dimensions	4 x 3.5 x 6.5 inches; 1 Pounds
Target Species	Fish
UPC	885730609644 885479943481 317163421468 885509235029 317163021460 885232340557 885390880940
Unit Count	1 Count

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€ 72.22

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In stock

Sold byAmazon FranceDelivered 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 France.

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TrustScore 4.5 | 7,300+ reviews

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