---
product_id: 116412489
title: "SePRO Captain XTR Liquid Copper Algaecide (2.5 Gallons)"
brand: "sepro corporation"
price: "€ 515.86"
currency: EUR
in_stock: true
reviews_count: 8
category: "Sepro Corporation"
url: https://www.desertcart.gr/products/116412489-sepro-captain-xtr-liquid-copper-algaecide-2-5-gallons
store_origin: GR
region: Greece
---

# Safe for multi-use waters Advanced infusion tech Optimized copper penetration SePRO Captain XTR Liquid Copper Algaecide (2.5 Gallons)

**Brand:** sepro corporation
**Price:** € 515.86
**Availability:** ✅ In Stock

## Summary

> 🛡️ Dominate algae with science-driven power and keep your waters thriving!

## Quick Answers

- **What is this?** SePRO Captain XTR Liquid Copper Algaecide (2.5 Gallons) by sepro corporation
- **How much does it cost?** € 515.86 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/116412489-sepro-captain-xtr-liquid-copper-algaecide-2-5-gallons)

## Best For

- sepro corporation enthusiasts

## Why This Product

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

## Key Features

- • **Multi-Use Water Safety:** Safe for swimming, fishing, livestock, and irrigation during & after use
- • **Eco-Conscious & Reliable:** Effective control without compromising water usability
- • **Precision Copper Infusion:** Maximizes copper absorption for unbeatable algae control
- • **Cutting-Edge Algaecide Tech:** Leverages best-in-class technology for all algae types
- • **Targeted Tough Algae Defense:** Specialized formula conquers mat-forming & colonial species

## Overview

SePRO Captain XTR Liquid Copper Algaecide (2.5 Gallons) uses advanced copper infusion technology to penetrate and eliminate even the toughest algae species. Its optimized formula ensures effective control of mat-forming, colonial, and mucilaginous algae while remaining safe for swimming, fishing, livestock watering, and irrigation of both food and non-food crops.

## Description

Captain XTR is the best available technology for the control of all algae types. Captain XTR is optimized to increase the penetration of copper into algae cells, enhancing the efficacy of the product. This formulation is especially impactful when targeting tough to control mat-forming, colonial, and mucilaginous species. Waters treated with Captain XTR may be used for swimming, fishing, watering livestock, and irrigation of food and non-food crops (e.g. turf, ornamentals) during and after application. Algae Control through Infusion Copper infusion rate is impacted by specialized formulation technology Captain XTR Infusion results in more copper penetrating algae cells, improving the control of unwanted species Captain XTR offers enhanced performance on challenging species, such as Lyngbya, Oscillatoria, Microcystis, Pithophora, Rhizoclonium, and Nitellopsis obtuse (Starry stonewort)

Review: This works! - This works on our difficult to manage ponds
Review: Great product - Worked great to eliminate weeds and algae in our pond. But thanks to advice from a pond management buddy I used 1 qt per gallon in my sprayer. Algae and weeds are GONE!!

## Features

- OPTIMIZATION: Captain XTR increases the penetration of copper into algae cells, enhancing the efficacy of the product
- INFUSION: Results in more copper penetrating algae cells, improving the control of unwanted species
- RELIABILITY: Formulation is especially impactful when targeting tough to control mat-forming, colonial, and mucilaginous species
- QUALITY: Best available technology for the control of all algae types.
- SAFE: Waters treated with Captain XTR may be used for swimming, fishing, watering livestock, and irrigation of food and non-food crops (e.g. turf, ornamentals) during and after application

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07GH9L7WT |
| Best Sellers Rank | #97,200 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #256 in Water Garden & Pond Treatment |
| Brand | Sepro Corporation |
| Brand Name | Sepro Corporation |
| Customer Reviews | 4.5 out of 5 stars 33 Reviews |
| Item Form | Copper,Liquid |
| Manufacturer | SePRO Corporation |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product Benefits | Controls Algae |
| UPC | 811055011176 |
| Unit Count | 320.0 Fluid Ounces |

## Product Details

- **Brand:** SePRO
- **Item Form:** Copper,Liquid
- **Product Benefits:** Controls Algae
- **UPC:** 811055011176
- **Number of Items:** 1

## Images

![SePRO Captain XTR Liquid Copper Algaecide (2.5 Gallons) - Image 1](https://m.media-amazon.com/images/I/31wbQFkk2oL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ This works!
*by C***K on June 25, 2025*

This works on our difficult to manage ponds

### ⭐⭐⭐⭐⭐ Great product
*by T***3 on September 26, 2024*

Worked great to eliminate weeds and algae in our pond. But thanks to advice from a pond management buddy I used 1 qt per gallon in my sprayer. Algae and weeds are GONE!!

### ⭐⭐⭐⭐ Read and environmental restrictions.
*by J***S on January 24, 2026*

It worked well for me.

## Frequently Bought Together

- SePRO Captain XTR Liquid Copper Algaecide (2.5 Gallons)
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- Captain Liquid Copper Algaecide - 1 Gallon Professional-Grade Algae Killer for Lakes & Ponds, EPA Approved to Control All Types of Algae (Planktonic, Filamentous, and Chara)

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**Shop now:** [https://www.desertcart.gr/products/116412489-sepro-captain-xtr-liquid-copper-algaecide-2-5-gallons](https://www.desertcart.gr/products/116412489-sepro-captain-xtr-liquid-copper-algaecide-2-5-gallons)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-05-31*