---
product_id: 48370609
title: "API MELAFIX Freshwater Fish Bacterial Infection Remedy 118 ml Bottle"
brand: "api"
price: "₩42228"
currency: KRW
in_stock: true
reviews_count: 13
category: "Api"
url: https://www.desertcart.kr/products/48370609-api-melafix-freshwater-fish-bacterial-infection-remedy-118-ml-bottle
store_origin: KR
region: South Korea
---

# Natural tea tree extract Safe for freshwater fish & plants 118 ml easy-dose liquid API MELAFIX Freshwater Fish Bacterial Infection Remedy 118 ml Bottle

**Brand:** api
**Price:** ₩42228
**Availability:** ✅ In Stock

## Summary

> 🐟 Heal, protect, and thrive—your fish’s natural defense starts here!

## Quick Answers

- **What is this?** API MELAFIX Freshwater Fish Bacterial Infection Remedy 118 ml Bottle by api
- **How much does it cost?** ₩42228 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/48370609-api-melafix-freshwater-fish-bacterial-infection-remedy-118-ml-bottle)

## Best For

- api enthusiasts

## Why This Product

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

## Key Features

- • **Precision Dosing:** 118 ml bottle designed for easy, accurate application—perfect for consistent aquarium care.
- • **Prevent & Protect:** Use daily for a week to treat infections or as a 3-day preventive when introducing new fish—stay ahead of outbreaks.
- • **Botanical Powerhouse:** Harnesses natural tea tree extract for gentle yet effective bacterial infection treatment.
- • **Multi-Symptom Relief:** Targets fin rot, ulcers, wounds, and abrasions to restore your fish’s vitality quickly.
- • **Aquarium-Friendly Formula:** Safe for sensitive freshwater fish, plants, and biofilters—no harsh chemicals involved.

## Overview

API MELAFIX is a 118 ml liquid remedy formulated with natural tea tree extract to treat bacterial infections in freshwater fish. It effectively heals fin rot, ulcers, and open wounds while being safe for plants and aquarium biofilters. Ideal for both treatment and prevention, MELAFIX supports fish health with gentle, easy dosing that fits seamlessly into your aquarium care routine.

## Description

API MELAFIX Freshwater Fish Bacterial Infection Remedy 118 ml Bottle : desertcart.co.uk: Pet Supplies

Review: Gentle, effective, and easy-dose—solid remedy for fin rot, wounds, and tank recovery. - This bottle’s made to handle mild bacterial issues—natural tea tree extract that treats fin rot, ulcers, and open wounds without hammering your biofilter. Geared toward freshwater setups with sensitive fish or planted tanks. Doses clean, smells herbal, and doesn’t cloud the water. Works well in recovery setups—post-transport stress, minor injuries, or when fish start showing signs of wear. Ideal for van stash, pet kits, or home aquariums where you want low-impact treatment. Bottle’s easy to measure, and the 473ml size lasts through multiple rounds. Best used with good aeration—MELAFIX can reduce oxygen slightly, so keep your pump or air stone running. 👍 Pros ✅ Natural formula—tea tree based, gentle on fish ✅ Treats fin rot, wounds, ulcers, and abrasions ✅ Safe for plants and filters—no harsh chemicals ✅ Easy dosing—clear instructions on label ✅ Large bottle—covers multiple treatments 👎 Cons ❌ Mild strength—won’t fix severe infections ❌ Herbal scent—noticeable during dosing ❌ Needs aeration—can lower oxygen levels
Review: Definitely helped my poorly fish . - Bought this in hopes it would help my young Koi that just hasn’t been well since it was gifted to me 3 months ago . I had no idea what was wrong & we have no aquatic vet close by so after googling symptoms in great detail & doing some research it kept coming back as bacterial infection. I’ve had my other fish 20+ years & never had to use any chemicals in my pond or treat any of my fish .. Decided to give melafix a go & im really glad I did . I isolated him in a tank & im currently on day 6 of the treatment . He’d been bottom sitting in my pond for weeks , he’d never come up for food at feeding time & he spent 24 hours a day hiding behind my pond plants . As you can see in the video I took yesterday he’s now swimming around perfectly normal & happy , Ive been using koi flakes to feed him whilst he’s in the tank (usually use MediKoi) & it’s the first time I’ve seen him eat since he fell ill . The melafix also cleared up a red bloodshot patch he’d got underneath his body within the first dose of treatment . He’s not stopped swimming around & playing with the bubbles from the air stones 😂 I’ll be gutted when I have to put him back in the pond . I’d definitely recommend this stuff . I thought I was gonna lose my fish he was so lethargic & unwell but it took just 3 days of this stuff & I saw positive signs . Just to add , it did make the water go incredibly cloudy and my koi did start rubbing a bit against the airstones which can be a side effect to using melafix . I did a 25% water change and added 2 tablespoons spoons of pond salt , this helped with any irritation / stress .

## Features

- Contains one (1) API MELAFIX Freshwater Fish Bacterial Infection Remedy 118 ml Bottle
- Heals bacterial infections and repairs damaged fins, ulcers and open wounds
- Contains natural, botanical tea tree extract to quickly and rapidly help fish
- Helps treat newly-introduced fish to reduce risk of disease outbreak in freshwater aquariums
- Use daily for a week when treating infections and for 3 days as a preventive when adding new fish

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002567SM |
| Allergen Information | Apple Free |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 833 in Pet Supplies ( See Top 100 in Pet Supplies ) 3 in Prescription Aquatic Animal Medications |
| Colour | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (11,158) |
| Date First Available | 8 Aug. 2009 |
| Item Form | Liquid |
| Item Weight | 136 g |
| Item model number | 11G |
| Number of Items | 1 |
| Pet Life Stage | all |
| Pet Type | Fish |
| Product Dimensions | 12.7 x 5.08 x 30.48 cm; 136.07 g |
| Quantity | 1 |
| Size | 118 ml (Pack of 1) |
| Special features | 1 |
| Volume | 4 |

## Product Details

- **Brand:** API
- **Item form:** Liquid
- **Item weight:** 136.08 Grams
- **Liquid volume:** 4 Fluid Ounces
- **Manufacturer:** API

## Images

![API MELAFIX Freshwater Fish Bacterial Infection Remedy 118 ml Bottle - Image 1](https://m.media-amazon.com/images/I/71pzBihgaWL.jpg)

## Questions & Answers

**Q: Can this be used with api stress coat?**
A: As that's a standard water contitioner it shouldn't have any effect combining that with the api disease treatment. Also if your just using Melafix and it doesn't improve the problem combine it with Primafix  (as suggested by api) to cure secondary bacteria/fungus issues.

**Q: Api melafix freshwater bacterial infection remedy 237 ml bottle arrived 75% empty, product had leaked out - how do i get a refund/replacement, please?**
A: Go through Amazon returns in yhe account section and orders.

**Q: My fish has fungus around body. Does it works?**
A: My tetras have a mould on the body and face and this did the job. There are other products but as a first try, it's worth a go.

**Q: What will happen if I leave my UV steriliser on during treatment?**
A: Nothing. Just remove carbon.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Gentle, effective, and easy-dose—solid remedy for fin rot, wounds, and tank recovery.
*by G***E on 20 September 2025*

This bottle’s made to handle mild bacterial issues—natural tea tree extract that treats fin rot, ulcers, and open wounds without hammering your biofilter. Geared toward freshwater setups with sensitive fish or planted tanks. Doses clean, smells herbal, and doesn’t cloud the water. Works well in recovery setups—post-transport stress, minor injuries, or when fish start showing signs of wear. Ideal for van stash, pet kits, or home aquariums where you want low-impact treatment. Bottle’s easy to measure, and the 473ml size lasts through multiple rounds. Best used with good aeration—MELAFIX can reduce oxygen slightly, so keep your pump or air stone running. 👍 Pros ✅ Natural formula—tea tree based, gentle on fish ✅ Treats fin rot, wounds, ulcers, and abrasions ✅ Safe for plants and filters—no harsh chemicals ✅ Easy dosing—clear instructions on label ✅ Large bottle—covers multiple treatments 👎 Cons ❌ Mild strength—won’t fix severe infections ❌ Herbal scent—noticeable during dosing ❌ Needs aeration—can lower oxygen levels

### ⭐⭐⭐⭐⭐ Definitely helped my poorly fish .
*by K***E on 18 September 2025*

Bought this in hopes it would help my young Koi that just hasn’t been well since it was gifted to me 3 months ago . I had no idea what was wrong & we have no aquatic vet close by so after googling symptoms in great detail & doing some research it kept coming back as bacterial infection. I’ve had my other fish 20+ years & never had to use any chemicals in my pond or treat any of my fish .. Decided to give melafix a go & im really glad I did . I isolated him in a tank & im currently on day 6 of the treatment . He’d been bottom sitting in my pond for weeks , he’d never come up for food at feeding time & he spent 24 hours a day hiding behind my pond plants . As you can see in the video I took yesterday he’s now swimming around perfectly normal & happy , Ive been using koi flakes to feed him whilst he’s in the tank (usually use MediKoi) & it’s the first time I’ve seen him eat since he fell ill . The melafix also cleared up a red bloodshot patch he’d got underneath his body within the first dose of treatment . He’s not stopped swimming around & playing with the bubbles from the air stones 😂 I’ll be gutted when I have to put him back in the pond . I’d definitely recommend this stuff . I thought I was gonna lose my fish he was so lethargic & unwell but it took just 3 days of this stuff & I saw positive signs . Just to add , it did make the water go incredibly cloudy and my koi did start rubbing a bit against the airstones which can be a side effect to using melafix . I did a 25% water change and added 2 tablespoons spoons of pond salt , this helped with any irritation / stress .

### ⭐⭐⭐⭐ Aquarium antibacterial remedy
*by M***E on 3 November 2025*

Bought as we had a problem in the fish tank. Used this as instructed problem cleared up. Good price worked well.

## Frequently Bought Together

- API MELAFIX Freshwater Fish Bacterial Infection Remedy 4-Ounce Bottle
- API LIQUID SUPER ICK CURE Fish remedy, Freshwater and Saltwater Fish Medication 4 fl oz(Pack of 1), White
- API AQUARIUM SALT Freshwater Aquarium Salt 36-Ounce Box

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-27*