---
product_id: 23488095
title: "CrystalClear AlgaeOff - String Algae Remover - 2.5 pounds treats up to 1,000 Square Feet"
brand: "crystalclear"
price: "AR$131033"
currency: ARS
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.ar/products/23488095-crystalclear-algaeoff-string-algae-remover-2-5-pounds-treats-up
store_origin: AR
region: Argentina
---

# Fast-acting algae killer Covers up to 1,000 sq ft EPA registered algaecide CrystalClear AlgaeOff - String Algae Remover - 2.5 pounds treats up to 1,000 Square Feet

**Brand:** crystalclear
**Price:** AR$131033
**Availability:** ✅ In Stock

## Summary

> 🌿 Clear your pond, clear your mind—be the envy of every water lover!

## Quick Answers

- **What is this?** CrystalClear AlgaeOff - String Algae Remover - 2.5 pounds treats up to 1,000 Square Feet by crystalclear
- **How much does it cost?** AR$131033 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/23488095-crystalclear-algaeoff-string-algae-remover-2-5-pounds-treats-up)

## 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

- • **Generous Coverage:** 2.5 lbs treats up to 1,000 sq ft—big pond? No problem
- • **Green Water No More:** Effectively clears green water for a pristine aquatic environment
- • **EPA-Registered Power:** Trusted, safe, and effective formula for your aquatic ecosystem
- • **Versatile Application:** Perfect for ponds, rocks, and liners—total algae control
- • **Instant Algae Annihilation:** Zap string algae fast for crystal-clear waters

## Overview

CrystalClear AlgaeOff is a granular, EPA-registered algaecide designed to rapidly eliminate string algae and green water. This 2.5-pound treatment covers up to 1,000 square feet, making it ideal for ponds, rocks, and liners, ensuring a crystal-clear aquatic environment.

## Description

Full description not available

## Features

- Granular powder, string algae remover
- EPA Registered Algaecide
- Immediately removes and kills string algae fast
- Use for pond clean outs rocks and liners, 2.5 pound jar
- Effective against green water

## Product Details

- **Brand:** CrystalClear
- **Item Weight:** 2.5 Pounds
- **Item Form:** Granules, Powder
- **Manufacturer:** Airmax, Inc
- **UPC:** 023796000597

## Images

![CrystalClear AlgaeOff - String Algae Remover - 2.5 pounds treats up to 1,000 Square Feet - Image 1](https://m.media-amazon.com/images/I/61D02PWuMdL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ This stuff works!
*by A***R on June 25, 2025*

Had a bad string algae problem in my pond last month. It took two tries. My fish were fine. I stopped the waterfall and sprinkled the fix on and let it sit about half an hour. It foamed green goop. I scraped it off of the rocks and hosed it down. Started the waterfall back up. Voila!

### ⭐⭐⭐⭐⭐ Use for clear water
*by E***N on June 23, 2025*

This stuff really works to take care of my string and scummy algae. Just keep lots of aeration running and in a couple of days you have clean clear water. Follow directions and fish and frogs are not bothered. The small particles of algae that make the water cloudy looking are also gone. In our northern climate it lasts for a couple of weeks in really hot streaks and longer when its not so hot.

### ⭐⭐⭐⭐ It works!
*by C***. on August 17, 2022*

For the first time in 12 years I had a large growth of heavy, string type algae on my concrete boat ramp into our lake. I tried scraping it off with a flat, metal shovel as well as a stiff, hard bristled push broom. It was a total and frustrating mess, and did not work."Algae Off" was a $20+ gamble for a rather small , 2.5 pound canister, approximately one quart. The label indicates it will treat up to 1,000 square feet. My area of concern was less than 200 square feet. It took 3 separate treatments , following the directions, to have any success. I pretty much used all 2.5 pounds of Algae Off to rid the String Algae. That being said, I think the manufacturer needs to explain a bit more in-depth how much of this rather expensive product is actually needed. Other than cost and amount of product actually needed, I think it works and it definitely saved me a ton of work. Claims to be safe for fish, but is a corrosive to humans and animals.

## Frequently Bought Together

- CrystalClear AlgaeOff Pond Algae Control Treatment, for Cleaner & Clearer Pond Water, EPA Registered Algaecide Treatment, Safe for Use in Ponds Containing Fish and Plants, Treats 1000 sq, 2.5 lbs
- CrystalClear Algae D-Solv Pond Algae Control, Fast-Acting EPA Registered Algaecide, Use in Fountains & Outdoor Ponds Containing Koi & Other Fish, Treats 5,760 Gallons, 16 Ounces
- CrystalClear MuckOff, Natural Pond Muck Treatment, Water Garden, Fountain & Bird Bath Sludge Remover, Living Beneficial Bacteria Clarifier with Enzyme, Fish, Aquatic Animal, & Pet Safe, 24 Tablets

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.ar/products/23488095-crystalclear-algaeoff-string-algae-remover-2-5-pounds-treats-up](https://www.desertcart.com.ar/products/23488095-crystalclear-algaeoff-string-algae-remover-2-5-pounds-treats-up)

---

*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-02-27*