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!

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

Help Track order

Account Cart

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

Help Track order

Account Cart

API POND-ZYME SLUDGE DESTROYER (1 Pound) Pond Cleaner with Natural Pond Bacteria - Up to 16,000 Gallons - Reduces Fish Waste Buildup - Consumes Muck & Sludge - Spring Start Up & Regular Care

API POND-ZYME SLUDGE DESTROYER (1 Pound) Pond Cleaner with Natural Pond Bacteria - Up to 16,000 Gallons - Reduces Fish Waste Buildup - Consumes Muck & Sludge - Spring Start Up & Regular Care

Product ID: 1423401

Details

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

🌿Breaks down algae & organic muck

💧Treats up to 16,000 gallons

🦠Natural bacteria-powered

265.83 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

Description

🌊 Clear your pond, clear your mind — the natural way to pristine waters!

FAST ACTING FORMULA - Breaks down dead algae, leaves, and grass clippings quickly, keeping your pond crystal clear and pump-efficient.
SAFE FOR ALL POND LIFE - Formulated to protect koi, goldfish, catfish, and local wildlife, ensuring a thriving, balanced ecosystem.
MASSIVE COVERAGE CAPACITY - One pound treats up to 16,000 gallons, making it perfect for large ornamental ponds and reducing maintenance frequency.
TRUSTED AQUATIC EXPERTISE - Backed by over 60 years of API’s pioneering research, delivering reliable, professional-grade pond care.
ECO FRIENDLY SLUDGE DESTROYER - Harnesses natural bacteria and barley to safely consume fish waste and pond sludge without harming your aquatic friends.

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. Designed for ponds up to 16,000 gallons, it reduces maintenance by efficiently consuming muck and sludge while being safe for fish and wildlife. Trusted for over 60 years, this formula ensures a healthy, clear pond environment with easy bi-weekly dosing.

Specifications

ASIN	B000OVCI2S
ASIN	B000OVCI2S
Allergen Information	Apple Free
Best Sellers Rank	#3,563 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #17 in Water Garden & Pond Treatment
Brand Name	API
Customer Reviews	4.3 4.3 out of 5 stars (4,961)
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
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

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.