---
product_id: 101195852
title: "Macro Zyme Time Release Block Beneficial Bacteria Pack of 2 | Muck Remover for Ponds & Lakes | Non-Chemical Lake & Pond Treatment for Eliminating Sludge & Odors | Treats Up to 6 acre-feet 12 lb."
brand: "kasco"
price: "3843 kr"
currency: DKK
in_stock: true
reviews_count: 8
category: "Kasco"
url: https://www.desertcart.dk/products/101195852-macro-zyme-time-release-block-beneficial-bacteria-pack-of-2
store_origin: DK
region: Denmark
---

# Time-release formula for long-lasting effect Treats up to 6 acre-feet per block Billions of beneficial bacteria Macro Zyme Time Release Block Beneficial Bacteria Pack of 2 | Muck Remover for Ponds & Lakes | Non-Chemical Lake & Pond Treatment for Eliminating Sludge & Odors | Treats Up to 6 acre-feet 12 lb.

**Brand:** kasco
**Price:** 3843 kr
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Macro Zyme Time Release Block Beneficial Bacteria Pack of 2 | Muck Remover for Ponds & Lakes | Non-Chemical Lake & Pond Treatment for Eliminating Sludge & Odors | Treats Up to 6 acre-feet 12 lb. by kasco
- **How much does it cost?** 3843 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/101195852-macro-zyme-time-release-block-beneficial-bacteria-pack-of-2)

## Best For

- kasco enthusiasts

## Why This Product

- Trusted kasco brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Massive Coverage:** Each 12 lb block treats up to 6 acre-feet, perfect for large ponds and lakes—scale your water clarity effortlessly.
- • **Effortless Application:** Simply place blocks directly into your pond—no extra equipment or permits needed for a pristine aquatic environment.
- • **Powerful Biodegradation:** Rapidly breaks down sludge, dead grass, and fish waste to restore crystal-clear water.
- • **Extended Time-Release Action:** Continuous bacteria and enzyme release ensures up to two years of effective pond treatment without reapplication hassle.
- • **100% Chemical-Free & Eco-Safe:** Non-toxic formula protects fish, wildlife, pets, and humans while eliminating foul odors naturally.

## Overview

Kasco Macro Zyme Time Release Blocks deliver billions of beneficial bacteria and enzymes in a chemical-free, time-release formula that treats up to 6 acre-feet of pond or lake water per 12 lb block. Designed to rapidly eliminate sludge, odors, and organic waste, these blocks promote a balanced, healthy aquatic ecosystem safe for fish, pets, and wildlife, with a shelf life of two years and no need for additional equipment or permits.

## Description

Buy Kasco Macro Zyme Time Release Block Beneficial Bacteria Pack of 2 | Muck Remover for Ponds & Lakes | Non-Chemical Lake & Pond Treatment for Eliminating Sludge & Odors | Treats Up to 6 acre-feet 12 lb.: Water Treatment - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Keeps your pond balanced and clear - These are a little pricey yet add such quality to your pond . Our pond is 7 years old . We have 2 aerators and one fountain. We buy 2 of these and put one each by each aerator . Blues gills are doing great and pond is very clear and clean .
Review: Seems effective. Pricey, and the block can break down to a powder if you store it - Works well, but it's pretty expensive. Our pond is small, and even at twice the recommended dosage, we didn't use it all in one shot. By the time we put in the second dose, the block had broken down to a powder and was much more difficult to get to the places in the pond where we needed it. I'm not sure if this affected it's effectiveness, but we did switch to another slightly cheaper "pellet" brand for easier distribution. If you've never used this type of stuff before, be aware that this is a bacteria, so there is an odor to it.

## Features

- Pond Muck and Sludge Remover: Kasco’s Macro-Zyme Muck Block pond equipment is the perfect choice to control and eliminate sludge and foul odors in tanks, ponds, and lakes. Once introduced, this pond cleaner for outdoor ponds quickly releases billions of beneficial organisms and enzymes to reduce muck, neutralize odors, and clean your water!
- Clear, Neutralize & Purify Water: Our Macro-Zyme pond muck remover rapidly eliminates dead grass, leaves, fish waste, and sludge through increased decomposition. Macro-Zyme sludge treatment can reduce odors in 24 hours or less and decrease nitrates and phosphates to help restore a healthy oxygen level.
- Large Treatment Area: This 12 lb. Pack of 2 Time Release Block of Macro-Zyme treats up to 6 acre-feet square feet of water per block and has a shelf life of two years. Use directly into your pond or lake without hassle or needing extra equipment. For best results, refer to the attached product document for all information.
- Non-Chemical, Safe Formula: Our muck removal blocks are made without chemicals to guarantee their safety for humans, fish, wildlife, and livestock. No fillers or other non-aquatic ingredients are included in our pond supplies to ensure the highest quality.
- A Perfect Solution for a Cleaner Lake & Pond: Digests and removes nutrients without chemicals as well as pond scum and floating particles. Eliminates animal waste, dead grass, and foul smells through increased decomposition. Safe for people, pets and livestock and no irrigation restrictions or permit required.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B074HNGV1S |
| Best Sellers Rank | #149,030 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #267 in Water Garden & Pond Treatment |
| Brand Name | Kasco |
| Customer Reviews | 3.9 3.9 out of 5 stars (206) |
| Date First Available | August 2, 2017 |
| Included Components | No |
| Item Dimensions LxWxH | 13 x 7 x 7 inches |
| Item Package Dimensions L x W x H | 12.4 x 6.42 x 5.67 inches |
| Item Weight | 6 Pounds |
| Manufacturer | Kasco |
| Model Name | MZ2XMB5 |
| Number of Items | 2 |
| Package Weight | 5.8 Kilograms |
| Part Number | MZ2XMB5 |
| Target Species | Fish |
| Warranty Description | 2 Years Shelf Life |

## Product Details

- **Brand:** Kasco
- **Item Form:** Pellets
- **Item Weight:** 6 Pounds
- **Manufacturer:** Kasco
- **UPC:** 611138728355 727168492842

## Images

![Macro Zyme Time Release Block Beneficial Bacteria Pack of 2 | Muck Remover for Ponds & Lakes | Non-Chemical Lake & Pond Treatment for Eliminating Sludge & Odors | Treats Up to 6 acre-feet 12 lb. - Image 1](https://m.media-amazon.com/images/I/710d8sd7KWL.jpg)

## Questions & Answers

**Q: How long it takes to see a result?**
A: Time for results to appear varies with each and every pond.  Results are best when the application instructions are closely followed and when the pond has an aerator or water fountain running in it to assist with maintaining good pond health.  Please call us at (833) 779-2837 to speak with an aquatic biologist who can better answer your specific questions.  Thank you and enjoy your pond!

**Q: Have an acre  pond how offen do you put these in how long do they last?**
A: I think varies a lot. Our pond stays on the cool side and the pellet slow disappeared over a 3 to 4 month period. Have seen a huge difference in muck. This will be my third year using them.

**Q: Where is this manufactured?**
A: All Kasco Marine beneficial bacteria products are manufactured in the USA.  Please contact us at (833) 779-2837 if you have any questions.  Thank you and enjoy your pond!

**Q: How big are the blocks? Are they the size of a softball?**
A: The Kasco Marine Muck Block is a little bigger than a softball. Please let us know if you have any other questions, you can always reach us at 833-779-2837. Thanks, CSJ&J Aquatic Gardens

## Customer Reviews

### ⭐⭐⭐⭐⭐ Keeps your pond balanced and clear
*by D***Y on September 4, 2025*

These are a little pricey yet add such quality to your pond . Our pond is 7 years old . We have 2 aerators and one fountain. We buy 2 of these and put one each by each aerator . Blues gills are doing great and pond is very clear and clean .

### ⭐⭐⭐⭐ Seems effective. Pricey, and the block can break down to a powder if you store it
*by R***S on August 3, 2025*

Works well, but it's pretty expensive. Our pond is small, and even at twice the recommended dosage, we didn't use it all in one shot. By the time we put in the second dose, the block had broken down to a powder and was much more difficult to get to the places in the pond where we needed it. I'm not sure if this affected it's effectiveness, but we did switch to another slightly cheaper "pellet" brand for easier distribution. If you've never used this type of stuff before, be aware that this is a bacteria, so there is an odor to it.

### ⭐⭐⭐⭐⭐ Best muck reducer for 20+ year old pond
*by J***S on December 1, 2020*

I have treated my 100 x 300 ft. pond for over 20 years. The science of a pond changes with age. I've treated my pond with several muck removers including products from The Pond Guy, Lake Restoration, etc. I've used pellets & packets and algae control totaling over $2k annually. I stared using this muck block and placed a block @ each of my diffusers. (I also raised my diffusers by 12" by tying them to plastic milk crates for best aeration) I added and additional block in the center of my pond every 2 weeks acting like a shocker as you would a pool. MY POND LOOKS MAGNIFICENT.! In some areas of my pond I had muck/sludge up to 12+ inches. NOW IT'S GONE! With the loss of muck, the algae has diminished by 90%. I can't wait to see what my maintenance will look like next year. I used to hire teenagers to rake muck & algae 4x a year and never could get on top of the growth. In addition to the muck block, I occasionally needed to add some cutrine granular and occasional spray cutrine. Now it's about a cutrine application every 30 days (minor application) instead of a major investment weekly. I CAN'T RECOMMED THIS PRODUCT ENOUGH! Also, we have fish and a beach for swimming. SAFE FOR ALL.

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-03-10*