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!

Api Pond Zyme | Desertcart Czech Republic

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Description

🛠️ Transform your pond into a pristine oasis with nature’s own sludge destroyer!

TRUSTED LEGACY - Backed by 60+ years of aquatic expertise, API ensures reliable, science-driven pond care that professionals and enthusiasts trust.
MASSIVE COVERAGE - One pound treats up to 16,000 gallons, making it perfect for large ornamental ponds and reducing frequent refills.
ECO POWERED CLARITY - Harnesses natural bacteria and barley to naturally dissolve muck and sludge, keeping your pond crystal clear without harsh chemicals.
FISH WILDLIFE SAFE - Formulated to protect koi, goldfish, and local wildlife, so your ecosystem thrives while you relax.
EFFORTLESS MAINTENANCE - Simple dosing schedule—twice weekly for start-up, then biweekly for upkeep—minimizes your pond chores and maximizes enjoyment.

API POND-ZYME SLUDGE DESTROYER is a powerful, natural pond cleaner that uses active bacteria and barley to break down fish waste, algae, and organic sludge. Safe for fish and wildlife, it treats up to 16,000 gallons and reduces maintenance with a proven dosing schedule. Trusted for over 60 years, it keeps ornamental ponds clear, healthy, and thriving with minimal effort.

Specifications

ASIN	B000OVCI2S
ASIN	B000OVCI2S
Allergen Information	Apple Free
Best Sellers Rank	#3,840 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #16 in Water Garden & Pond Treatment
Brand Name	API
Customer Reviews	4.3 4.3 out of 5 stars (4,968)
Date First Available	October 2, 2003
Department	Pond
Global Trade Identification Number	00317163021460
Item Form	Stick
Item Type Name	Pond Sludge Remover
Item Weight	16 ounces
Item model number	146B
Manufacturer	Mars Fishcare
Manufacturer	Mars Fishcare
Manufacturer Part Number	146B
Manufacturer recommended age	1 month and up
Model Number	146B
Number of Items	1
Number of Packs	1
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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1077 Kč

Duties & taxes included

In stock

Sold byAmazon Czech RepublicDelivered 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 Czech Republic.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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API POND-ZYME

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