---
product_id: 49157252
title: "API Aquarium Antibacterial Remedy, Blue, 237 ml (Pack of 1)"
brand: "api"
price: "€ 33.22"
currency: EUR
in_stock: true
reviews_count: 13
category: "Api"
url: https://www.desertcart.sk/products/49157252-api-aquarium-antibacterial-remedy-blue-237-ml-pack-of-1
store_origin: SK
region: Slovakia
---

# Natural tea tree extract Safe for freshwater fish & plants 237 ml easy-dose liquid API Aquarium Antibacterial Remedy, Blue, 237 ml (Pack of 1)

**Brand:** api
**Price:** € 33.22
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** API Aquarium Antibacterial Remedy, Blue, 237 ml (Pack of 1) by api
- **How much does it cost?** € 33.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/49157252-api-aquarium-antibacterial-remedy-blue-237-ml-pack-of-1)

## 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

- • **Rapid Recovery:** Speeds healing of fin rot, ulcers, and open wounds to get your fish back to vibrant health.
- • **Precision Dosing:** 237 ml bottle designed for easy, accurate treatment cycles.
- • **Aquarium-Friendly:** Formulated to protect delicate freshwater fish and planted tanks without harming filters.
- • **Preventive Shield:** Use daily for infections or as a 3-day preventive when introducing new fish to avoid outbreaks.
- • **Botanical Powerhouse:** Harnesses natural tea tree extract for gentle yet effective bacterial defense.

## Overview

API Aquarium Antibacterial Remedy is a 237 ml liquid treatment featuring natural tea tree extract that effectively heals bacterial infections, fin rot, ulcers, and wounds in freshwater fish. Safe for planted tanks and biofilters, it supports rapid recovery and disease prevention with easy dosing, making it a must-have for any aquarium manager aiming to maintain a healthy, vibrant aquatic environment.

## Description

API Aquarium Antibacterial Remedy, Blue, 237 ml (Pack of 1) : 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 237 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 | B0002567SW |
| Allergen Information | Apple Free |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 810 in Pet Supplies ( See Top 100 in Pet Supplies ) 1 in Health Supplies for Fish & Aquatic Pets |
| Colour | BLUE |
| Customer Reviews | 4.5 4.5 out of 5 stars (11,145) |
| Date First Available | 8 Aug. 2009 |
| Item Form | Liquid |
| Item Weight | 283 g |
| Item model number | 11H |
| Number of Items | 1 |
| Pet Type | Fish |
| Product Dimensions | 12.7 x 5.08 x 30.48 cm; 283.49 g |
| Quantity | 1 |
| Size | 237 ml (Pack of 1) |
| Volume | 8 |

## Product Details

- **Brand:** API
- **Item form:** Liquid
- **Item weight:** 283.49 Grams
- **Liquid volume:** 8 Fluid Ounces
- **Manufacturer:** API

## Images

![API Aquarium Antibacterial Remedy, Blue, 237 ml (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/71aqAGslwPL.jpg)

## Available Options

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

## Questions & Answers

**Q: could you use this when quarantining fish?**
A: API suggests to use Melafix AND Pimafix together for Flukes and Parasitic Worms OR use General Cure for 7 days - what ever you treat with also add heat to 85-86 degrees to kill ICH along with Flukes and Parasites. That covers them all :) That’s what I do BUT YOU MUST add a few air stones because heat and meds take up a lot of oxygen. The air stones will keep the oxygen in and circulate the water. use a few Gallons in a container or tank and change the full water everyday to match the temp, redose just the right amount for the same water you change. Changing the full water daily gets rid of dead parasites, bacteria and fungus. I have used both ways but like General Cure and heat for QT better. If after General Cure treatment and the fish still have some sort of fungus or bacteria skin problem.... then QT 7days again with just Melafix and Pimafix so they can heal completely before putting them in display tank. Also when ready to move the QT fish(s) to Display tank... raise the heat in your display tank to 85-86 for a week just to be safe ALL fish in the tank are clear of ICK so no one will have an outbreak from stress while the new fish is adjusting. This works 100% of the time for me and everyone stays healthily while adjusting.

**Q: Why the bootle of 8oz said melaleuca 1%  and when i select the bootle of 16oz said pimenta ..why??**
A: pimenta is stronger. they probably assume you have a big tank and big fish, but it works well with smaller fish

**Q: How does this affect the chemistry of the water? Does it increase Nitirite? Thank you.**
A: It shouldn't affect your water chemistry at all.

**Q: can i use this with ich-x????**
A: No, it will kill your fish. Don't use this product at all. It is basically melaluca oil and it will clog your fish's gills and they suffocate to a slow death. This should not be sold as a fish remedy, but as a fish euthanizer. API should be ashamed of themselves. My poor goldfish. :(

## 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 8-Ounce Bottle
- API LIQUID SUPER ICK CURE Fish remedy, Freshwater and Saltwater Fish Medication 4 fl oz(Pack of 1), White
- API PIMAFIX Antifungal Freshwater and Saltwater Fish Remedy 8-Ounce Bottle (10H)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-27*