---
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: "3474304₫"
currency: VND
in_stock: true
reviews_count: 8
category: "Crystal Blue"
url: https://www.desertcart.vn/products/24439694-tsunami-dq-aquatic-herbicide-quart-37-3-percent-diquat-dibromide
store_origin: VN
region: Vietnam
---

# Fast-Acting Aquatic Weed Control Safe for Fish & Wildlife Ecosystems 37.3% Diquat Dibromide Concentration 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:** 3474304₫
**Availability:** ✅ In Stock

## Summary

> 🌊 Clear Your Waters, Command Your 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?** 3474304₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/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

- • **Eco-Conscious & Fish-Friendly:** Maintain a balanced ecosystem while eradicating invasive plants.
- • **Powerful 37.3% Diquat Formula:** Concentrated strength for rapid aquatic weed elimination.
- • **Easy-to-Mix & Apply Concentrate:** Precision treatment with minimal effort—perfect for busy pros.
- • **Rapid Action on Surface & Submerged Weeds:** See visible results fast—no more waiting weeks to reclaim your pond.
- • **Versatile Control for Multiple Aquatic Weeds:** Targets duckweed, watermeal, curly leaf, pondweed, and more.

## Overview

Tsunami DQ Aquatic Herbicide is a concentrated 37.3% Diquat Dibromide liquid formula designed for fast, effective control of a broad spectrum of aquatic weeds in lakes and ponds. Safe for fish and wildlife when used as directed, it offers an eco-friendly solution to maintain healthy water bodies. Ideal for professionals seeking quick, reliable results with easy application.

## 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: 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.
Review: works great - it works amazing for top surface weeds. But it doesn’t kill the root. Reapplying will eventually kill the weeds

## 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 | #46,334 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #197 in Weed Killers |
| Brand | Crystal Blue |
| Customer Reviews | 4.3 4.3 out of 5 stars (853) |
| 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

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ works great
*by M***E on September 2, 2025*

it works amazing for top surface weeds. But it doesn’t kill the root. Reapplying will eventually kill the weeds

### ⭐⭐⭐⭐⭐ Very efective.
*by B***R on August 22, 2025*

This stuff is a little pricey, but you don't need much per batch so it will go a long way. I used it on dry ground. Works very well. The directions say to completely cover the target and that is what I did. Any plants not covered completely will still survive.

## 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
- Crystal Blue Plex Mate Aquatic Surfactant for Herbicides - 8 Ounces - Non-Ionic, Increase Product Coverage, Increase Product Penetration, Increase Product Effectiveness
- CattPlex Pro - Aquatic Herbicide - Kills Cattails, Water Lilies, Grasses & More - Quart (32 Ounces)

---

## 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.vn/products/24439694-tsunami-dq-aquatic-herbicide-quart-37-3-percent-diquat-dibromide](https://www.desertcart.vn/products/24439694-tsunami-dq-aquatic-herbicide-quart-37-3-percent-diquat-dibromide)

---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-01-23*