---
product_id: 24439694
title: "Tsunami DQ Aquatic Herbicide- Quart - 37.3 Percent Diquat Dibromide – Concentrated Aquatic Weed Killer for Lakes and Ponds - Duckweed, Watermeal, Curly Leaf, Pondweed & Many More"
brand: "crystal blue"
price: "€ 111.14"
currency: EUR
in_stock: true
reviews_count: 8
category: "Crystal Blue"
url: https://www.desertcart.gr/products/24439694-tsunami-dq-aquatic-herbicide-quart-37-3-percent-diquat-dibromide
store_origin: GR
region: Greece
---

# Fast-acting aquatic weed control Targets diverse aquatic plants & algae 37.3% Diquat Dibromide Concentrate Tsunami DQ Aquatic Herbicide- Quart - 37.3 Percent Diquat Dibromide – Concentrated Aquatic Weed Killer for Lakes and Ponds - Duckweed, Watermeal, Curly Leaf, Pondweed & Many More

**Brand:** crystal blue
**Price:** € 111.14
**Availability:** ✅ In Stock

## Summary

> 🌊 Clear waters, zero weeds — own your aquatic space!

## Quick Answers

- **What is this?** Tsunami DQ Aquatic Herbicide- Quart - 37.3 Percent Diquat Dibromide – Concentrated Aquatic Weed Killer for Lakes and Ponds - Duckweed, Watermeal, Curly Leaf, Pondweed & Many More by crystal blue
- **How much does it cost?** € 111.14 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/24439694-tsunami-dq-aquatic-herbicide-quart-37-3-percent-diquat-dibromide)

## Best For

- crystal blue enthusiasts

## Why This Product

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

## Key Features

- • **Trusted & Proven:** Highly rated with 4.3 stars from 859 users who’ve saved their ponds from suffocation and overgrowth.
- • **Eco-Conscious Formula:** Safe for fish and wildlife when used as directed, maintaining your ecosystem’s delicate balance.
- • **Effortless Application:** Ready-to-mix liquid concentrate designed for easy, targeted spraying—no fuss, just results.
- • **Rapid Results, Less Wait:** Experience visible weed reduction quickly, restoring your lake or pond’s natural beauty in no time.
- • **Precision Aquatic Control:** Specifically formulated to eliminate duckweed, watermeal, curly leaf, pondweed, and more for pristine water bodies.

## Overview

Tsunami DQ is a concentrated aquatic herbicide with 37.3% Diquat Dibromide, engineered for fast, effective control of a wide range of aquatic weeds and algae in lakes and ponds. Safe for aquatic life when used properly, it offers an easy-to-apply liquid formula trusted by hundreds to restore and maintain healthy water environments.

## Description

desertcart.com : Tsunami DQ Aquatic Herbicide- Quart - 37.3 Percent Diquat Dibromide – Concentrated Aquatic Weed Killer for Lakes and Ponds - Duckweed, Watermeal, Curly Leaf, Pondweed & Many More : Algaecide Water Treatments : Patio, Lawn & Garden

Review: Great oroduct - Does the job on my lake weeds
Review: Good stuff and best price for it is desertcart. - Stuff works and best price for it is desertcart. You have to reapply it im a month or two if thick moss on top but worth it cause it really works. Saved our pond from suffocation.

## Features

- This product is not for sale in the following states: AZ, CA, CT, ME, MN, NH, NJ, NY, OR, VT, WA
- Effective Aquatic Weed Control: Tsunami DQ is a Diquat based Aquatic Herbicide that is specifically formulated to target and control a wide range of unwanted aquatic plants and algae, ensuring a cleaner, healthier water environment.
- Fast-Acting Formula: This powerful herbicide delivers rapid results, quickly killing submerged, floating, and emerged aquatic weeds in ponds, lakes, and other water bodies.
- Safe for Water Use: When used as directed, Diquat is safe for fish, wildlife, and other aquatic organisms, making it an ideal solution for maintaining water balance without harming the ecosystem.
- Easy-to-Apply: Comes in a ready-to-mix concentrate that is simple to apply with sprayers, allowing for targeted treatment of problem areas.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004KTILEO |
| Active Ingredients | Herbicide |
| Best Sellers Rank | #24,585 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #159 in Weed Killers |
| Brand | Crystal Blue |
| Customer Reviews | 4.3 4.3 out of 5 stars (859) |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 2 pounds |
| Item model number | 137 |
| Liquid Volume | 32 Fluid Ounces |
| Manufacturer | Crystal Blue |
| Product Dimensions | 5 x 2 x 11 inches |
| UPC | 768980001379 768980118008 |
| Unit Count | 32.0 Fluid Ounces |

## Product Details

- **Active Ingredients:** Herbicide
- **Brand:** Crystal Blue
- **Item Form:** Liquid
- **Item Weight:** 2 Pounds
- **Liquid Volume:** 32 Fluid Ounces

## Images

![Tsunami DQ Aquatic Herbicide- Quart - 37.3 Percent Diquat Dibromide – Concentrated Aquatic Weed Killer for Lakes and Ponds - Duckweed, Watermeal, Curly Leaf, Pondweed & Many More - Image 1](https://m.media-amazon.com/images/I/81p0LbqpqsL.jpg)

## Questions & Answers

**Q: Is Tsunami safe to use with fish?**
A: This product is safe when used according to label directions. When treating excessive pond growth, it is always important to treat in sections to avoid rapid oxygen depletion.

**Q: How often should I use Tsunami DQ?**
A: Tsunami DQ should be used for pond weeds. Wait 14 days between applications and only treat a 1/2 or 1/3 of the pond at a time to recover oxygen levels.

**Q: How do I apply this product?**
A: Tsunami DQ is a contact herbicide. Best results by spraying over top of the growth you are treating.

**Q: How much product do I use?**
A: 2-8 quarts per surface acre depending on infestation & type of weed for aquatics.

**Q: When is the best time to treat my pond weeds?**
A: Pond weeds should be treated when they are actively growing and water temperatures are above 60F.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great oroduct
*by J***N on February 12, 2026*

Does the job on my lake weeds

### ⭐⭐⭐⭐⭐ Good stuff and best price for it is amazon.
*by E***N on December 25, 2025*

Stuff works and best price for it is Amazon. You have to reapply it im a month or two if thick moss on top but worth it cause it really works. Saved our pond from suffocation.

### ⭐⭐⭐⭐ Extremely overgrown weeds
*by R***Z on July 11, 2025*

Seems to kill surface weeds well, have not noticed any subsurface weeds dieing , weeds were heavy, going to spray again

## Frequently Bought Together

- Tsunami DQ Aquatic Herbicide- Quart - 37.3 Percent Diquat Dibromide – Concentrated Aquatic Weed Killer for Lakes and Ponds - Duckweed, Watermeal, Curly Leaf, Pondweed & Many More
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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-19*