---
product_id: 433963794
title: "CrystalClear AlgaeOff Pond & Water Garden Scum Cleaner, Waterfall & Rock Slime Remover, String Algae Killer, Green Stain Treatment, EPA Registered Algaecide, Plant, Koi Fish, Bird & Pet Safe, 8 lbs"
brand: "crystalclear"
price: "€ 187.51"
currency: EUR
in_stock: true
reviews_count: 8
category: "Crystal Clear"
url: https://www.desertcart.be/products/433963794-crystalclear-algaeoff-pond-and-water-garden-scum-cleaner-waterfall-rock
store_origin: BE
region: Belgium
---

# Fast-acting algae killer Plant & pet safe formula EPA registered algaecide CrystalClear AlgaeOff Pond & Water Garden Scum Cleaner, Waterfall & Rock Slime Remover, String Algae Killer, Green Stain Treatment, EPA Registered Algaecide, Plant, Koi Fish, Bird & Pet Safe, 8 lbs

**Brand:** crystalclear
**Price:** € 187.51
**Availability:** ✅ In Stock

## Summary

> 🌊 Clear your pond, clear your mind—algae doesn’t stand a chance!

## Quick Answers

- **What is this?** CrystalClear AlgaeOff Pond & Water Garden Scum Cleaner, Waterfall & Rock Slime Remover, String Algae Killer, Green Stain Treatment, EPA Registered Algaecide, Plant, Koi Fish, Bird & Pet Safe, 8 lbs by crystalclear
- **How much does it cost?** € 187.51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/433963794-crystalclear-algaeoff-pond-and-water-garden-scum-cleaner-waterfall-rock)

## Best For

- crystalclear enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Use:** Simply sprinkle and watch algae vanish—no complicated steps
- • **Odor Eliminator:** Removes foul pond odors while cleaning algae
- • **Eco-Friendly & Safe:** Copper-free formula protects koi, birds, and pets 🌿
- • **Versatile Application:** Perfect for ponds, waterfalls, rocks, and liners 🧪
- • **Instant Algae Annihilation:** Works on contact to clear string algae in seconds ⚡

## Overview

CrystalClear AlgaeOff is an 8 lb EPA-registered granular algaecide designed for rapid removal of string algae and green stains in ponds, waterfalls, and water gardens. Its copper-free, pet-safe formula ensures effective algae control without harming koi, goldfish, birds, or plants. Easy to apply and fast-acting, it also neutralizes foul odors, making it the go-to solution for pristine aquatic environments.

## Description

About CrystalClear The Proven Solution in Water Garden Treatments Natural. Clear Water. Guaranteed. CrystalClear has been the proven solution and market leader in water garden treatments for over 20 years, producing unrivaled algae control solutions, natural water treatments, fish care products, and diffused aeration. CrystalClear is an American company founded with a passion for improving how pond owners care for their ponds. The success of CrystalClear is a result of several proprietary biological treatments and EPA registered algaecides. CrystalClear has been the proven solution and market leader in water garden treatments for over 20 years, producing unrivaled algae control solutions, natural water treatments, fish care products, and diffused aeration. CrystalClear is an American company founded with a passion for improving how pond owners care for their ponds. The success of CrystalClear is a result of several proprietary biological treatments and EPA registered algaecides. Solutions for Small Ponds Visit the Store Solutions for Small Ponds Visit the Store

Review: Immediate results - Works well
Review: Ease of use and effectiveness - Just sprinkled on stream and waterfall rocks, let set without water running for 20 to 30 minutes then turned water back on. Little skeptical at first but after a day or so the rocks were clean.

## Features

- Controls Algae in Ponds -- AlgaeOff algae remover works on contact! Utilizing the latest in oxygen technology to remove and kill string algae quickly and efficiently on rocks, streams, and waterfalls.
- EPA Registered Algaecide -- AlgaeOff is a fast-acting EPA registered granular algae remover that works in seconds! In addition to string algae control, it removes foul odors.
- Fast Acting, Works on Contact, Easy Application -- Simply sprinkle granular formula directly on areas covered in live algae. For a waterfall or fountain, turn off the water pump and apply treatment.
- Kills Algae Fast -- Immediately removes & lifts string algae. A great solution for pond clean-outs, rocks, and liners. Use in large ponds and lakes with algae mats. Will not treat planktonic algae or Chara.
- Will Not Harm Wildlife -- Does not contain copper! When used as directed, AlgaeOff is great for backyard ponds containing koi, goldfish, and grass carp. Will not harm animals when diluted in water.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09RKHVDY4 |
| Best Sellers Rank | #7,084 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #29 in Water Garden & Pond Treatment |
| Brand | CrystalClear |
| Brand Name | CrystalClear |
| Customer Reviews | 4.1 out of 5 stars 257 Reviews |
| Included Components | Scoop |
| Item Form | Powder |
| Item Weight | 8 Pounds |
| Manufacturer | Airmax |
| Manufacturer Part Number | CC074-08 |
| Target Species | Fish |
| UPC | 810089840219 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** CrystalClear
- **Item Weight:** 8 Pounds
- **Item Form:** Powder
- **Manufacturer:** Airmax
- **UPC:** 810089840219

## Images

![CrystalClear AlgaeOff Pond & Water Garden Scum Cleaner, Waterfall & Rock Slime Remover, String Algae Killer, Green Stain Treatment, EPA Registered Algaecide, Plant, Koi Fish, Bird & Pet Safe, 8 lbs - Image 1](https://m.media-amazon.com/images/I/813GyAI1aKL.jpg)
![CrystalClear AlgaeOff Pond & Water Garden Scum Cleaner, Waterfall & Rock Slime Remover, String Algae Killer, Green Stain Treatment, EPA Registered Algaecide, Plant, Koi Fish, Bird & Pet Safe, 8 lbs - Image 2](https://m.media-amazon.com/images/I/71glnP0+luL.jpg)
![CrystalClear AlgaeOff Pond & Water Garden Scum Cleaner, Waterfall & Rock Slime Remover, String Algae Killer, Green Stain Treatment, EPA Registered Algaecide, Plant, Koi Fish, Bird & Pet Safe, 8 lbs - Image 3](https://m.media-amazon.com/images/I/91UjExNehFL.jpg)
![CrystalClear AlgaeOff Pond & Water Garden Scum Cleaner, Waterfall & Rock Slime Remover, String Algae Killer, Green Stain Treatment, EPA Registered Algaecide, Plant, Koi Fish, Bird & Pet Safe, 8 lbs - Image 4](https://m.media-amazon.com/images/I/81JUF9ylQ-L.jpg)
![CrystalClear AlgaeOff Pond & Water Garden Scum Cleaner, Waterfall & Rock Slime Remover, String Algae Killer, Green Stain Treatment, EPA Registered Algaecide, Plant, Koi Fish, Bird & Pet Safe, 8 lbs - Image 5](https://m.media-amazon.com/images/I/91u4pmuJ-mL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Immediate results
*by D***. on May 5, 2026*

Works well

### ⭐⭐⭐⭐⭐ Ease of use and effectiveness
*by C***S on April 7, 2026*

Just sprinkled on stream and waterfall rocks, let set without water running for 20 to 30 minutes then turned water back on. Little skeptical at first but after a day or so the rocks were clean.

### ⭐⭐⭐⭐⭐ great quality
*by V***S on April 17, 2026*

did a great job

## Frequently Bought Together

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-05-17*