---
product_id: 707444220
title: "Kordon Methylene Blue Disease Preventative – Safe for Freshwater & Saltwater Aquariums, Prevents Fungal Infections & Treats Parasites, Reduces Fish Stress, 4-Ounces"
brand: "kordon"
price: "65.28 DT"
currency: TND
in_stock: true
category: "Kordon"
url: https://www.desertcart.tn/products/707444220-kordon-methylene-blue-disease-preventative-safe-for-freshwater-and-saltwater
store_origin: TN
region: Tunisia
---

# Safe for freshwater & saltwater 4 fl oz potent liquid formula Prevents fungal & parasite infections Kordon Methylene Blue Disease Preventative – Safe for Freshwater & Saltwater Aquariums, Prevents Fungal Infections & Treats Parasites, Reduces Fish Stress, 4-Ounces

**Brand:** kordon
**Price:** 65.28 DT
**Availability:** ✅ In Stock

## Summary

> 🛡️ Protect your aquatic world with Kordon’s blue shield!

## Quick Answers

- **What is this?** Kordon Methylene Blue Disease Preventative – Safe for Freshwater & Saltwater Aquariums, Prevents Fungal Infections & Treats Parasites, Reduces Fish Stress, 4-Ounces by kordon
- **How much does it cost?** 65.28 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/707444220-kordon-methylene-blue-disease-preventative-safe-for-freshwater-and-saltwater)

## Best For

- kordon enthusiasts

## Why This Product

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

## Key Features

- • **Odor-Free & Easy to Use:** No harsh smells, just straightforward treatment that fits seamlessly into your aquarium care routine.
- • **Stress-Reducing Formula:** Reduces fish stress for vibrant, active pets that stand out in any tank.
- • **Universal Compatibility:** Perfectly safe for both freshwater and saltwater aquariums—one solution for all your aquatic friends.
- • **Aquarium Health Guardian:** Clinically proven to prevent fungal infections and treat parasites, keeping your aquatic ecosystem thriving.
- • **Trusted American Quality:** Proudly made in the USA with 100% quality assurance—because your fish deserve the best.

## Overview

Kordon Methylene Blue is a 4-ounce liquid treatment designed to prevent fungal infections and treat parasites in both freshwater and saltwater aquariums. Made in the USA, this odor-free formula also reduces fish stress, ensuring healthier, more vibrant aquatic pets. Trusted by thousands, it’s a must-have for proactive aquarium care.

## Description

KORDON #37344 Methylene Blue-General Disease Prevention Treatment for Aquarium, 4-Ounce,

## Features

- 100% Quality driven Made in the USA
- Dedicated to creating a better environment for your pet
- Safety Guaranteed, Don't settle for Less, Use Kordon
- AQ MEDICATIONS & REMEDIES, FW
- Age Range Description: All Ages
- Package Dimension : 1.27 centimeters L x 2.286 centimeters W x 12.954 centimeters H
- Item Package weight : 0.136 kilograms

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00025646W |
| ASIN  | B00025646W |
| Allergen Information | Odor-Free |
| Best Sellers Rank | #7,529 in Pet Supplies ( See Top 100 in Pet Supplies ) #5 in Fish Medication & Health Supplies #47 in Aquarium Water Treatments |
| Brand Name | Kordon |
| Customer Reviews | 4.7 4.7 out of 5 stars (3,781) |
| Date First Available  | October 2, 2001 |
| Department  | Unisex-Adult |
| Global Trade Identification Number | 00048054373442 |
| Included Components | KORDON #37344 Methylene Blue-General Disease Prevention Treatment for Aquarium, 4-Ounce, |
| Is Discontinued By Manufacturer  | No |
| Item Form | Liquid |
| Item Type Name | KORDON # 37344 METHYLENE BLUE 4 OZ |
| Item Weight | 4 Ounces |
| Item model number  | MODEL-37344 |
| Liquid Volume | 4 Fluid Ounces |
| Manufacturer | KORDON LLC |
| Manufacturer  | KORDON LLC |
| Manufacturer Part Number | 048054373442 |
| Model Number | MODEL-37344 |
| Pet Type | Fish |
| Product Dimensions  | 2 x 2 x 5 inches; 4 ounces |
| Target Species | Fish |
| UPC | 048054373442 |
| Unit Count | 4 Fluid Ounces |

## Product Details

- **Brand:** Kordon
- **Item Form:** Liquid
- **Item Weight:** 4 Ounces
- **Liquid Volume:** 4 Fluid Ounces
- **Number of Packs:** 1

## Images

![Kordon Methylene Blue Disease Preventative – Safe for Freshwater & Saltwater Aquariums, Prevents Fungal Infections & Treats Parasites, Reduces Fish Stress, 4-Ounces - Image 1](https://m.media-amazon.com/images/I/61Ueqt3BcYL.jpg)

## Available Options

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

## Questions & Answers

**Q: Has anyone used this for fin rot and does it work well?**
A: Use a few drops of this with a tsp of Epson salt per gallon and your fishy will heal. The methylene blue will stick to wound to provide oxygen to promote healing. Change 1/3 of the water per week.

**Q: Is this solution good for microscope labs?**
A: heck yeah!

**Q: Can someone tell me if there are any additional ingredients ( preservatives,food colorings,additives,etc.) in this product?**
A: label does not list any addl ingredients. Does state for aquarium fish use only. Not for human or food fish use.

**Q: How much do you use per gal?**
A: Please aquarium use, please follow the directions on the bottle, which says 1 tsp in 10 gallons produces a 3ppm solution. For 1 gallon, one tenth of a teaspoon is 0.5 mL, or about 10 drops. For other uses, please be aware that this is not a 1% solution. The manufacturer states that this is a 2.303% solution. This means that each drop contains 1.15mg (not 0.5mg).

## Frequently Bought Together

- Kordon Methylene Blue Disease Preventative – Safe for Freshwater & Saltwater Aquariums, Prevents Fungal Infections & Treats Parasites, Reduces Fish Stress, 4-Ounces
- Kanaplex, 5 g(0.18 oz)
- API AQUARIUM SALT Freshwater Aquarium Salt 36-Ounce Box

---

## 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.tn/products/707444220-kordon-methylene-blue-disease-preventative-safe-for-freshwater-and-saltwater](https://www.desertcart.tn/products/707444220-kordon-methylene-blue-disease-preventative-safe-for-freshwater-and-saltwater)

---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-14*