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

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

Product ID: 708275103

Details

Brand
API
Item form
Stick
Item weight
1 Pounds
Manufacturer
Mars Fishcare
Unit count
1 Count

⏳Bi-weekly maintenance dosing

🌾Barley-based sludge digestion

🦠Natural bacteria power

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14186 kr

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

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

TRUSTED LEGACY BRAND - Backed by nearly 60 years of API’s proven aquatic care expertise, delivering reliable and effective pond solutions.
SAFE FOR ALL POND LIFE - Formulated to support a healthy environment for koi, goldfish, catfish, and more, ensuring vibrant aquatic ecosystems.
ALGAE DEBRIS DIGESTION - Effectively digests dead algae, leaves, and grass clippings to prevent clogging and maintain crystal-clear water.
LOW MAINTENANCE POND CARE - Reduces your pond upkeep time with a simple dosing schedule—twice weekly for start-up, then bi-weekly for ongoing clarity.
ECO FRIENDLY SLUDGE BREAKDOWN - Harnesses natural bacteria and barley to rapidly dissolve fish waste and organic sludge, keeping your pond pristine.

API POND-ZYME SLUDGE DESTROYER is a 1-pound pond cleaner that uses natural bacteria and barley to break down fish waste, algae, and organic sludge. Designed for ornamental ponds, it reduces maintenance by digesting debris and improving water quality. Recommended dosing starts with twice weekly applications for two weeks, then bi-weekly for upkeep. Safe for all pond life and trusted by fishkeepers for nearly six decades.

Specifications

ASIN	B000OVCI2S
Allergen Information	Apple Free
Brand Name	API
Customer Reviews	4.3 4.3 out of 5 stars (4,100)
Global Trade Identification Number	00317163021460
Item Form	Stick
Item Type Name	Pond Sludge Remover
Item Weight	1 Pounds
Manufacturer	Mars Fishcare
Manufacturer Part Number	146B
Model Number	146B
Target Species	Fish
UPC	885730609644 885479943481 317163421468 885509235029 317163021460 885232340557 885390880940
Unit Count	1 Count

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