---
product_id: 634092082
title: "Fritz Maracyn - for Saltwater and Freshwater gram-Positive Relief from Bacterial gil, Popeye, More - Easy dose Packets, 20 Count"
brand: "fritz"
price: "751 kr"
currency: DKK
in_stock: false
reviews_count: 5
category: "Fritz"
url: https://www.desertcart.dk/products/634092082-fritz-maracyn-for-saltwater-and-freshwater-gram-positive-relief-from
store_origin: DK
region: Denmark
---

# Treats 10 gallons per packet Pre-measured easy dose packets Broad-spectrum gram-positive antibiotic Fritz Maracyn - for Saltwater and Freshwater gram-Positive Relief from Bacterial gil, Popeye, More - Easy dose Packets, 20 Count

**Brand:** fritz
**Price:** 751 kr
**Availability:** ❌ Out of Stock

## Summary

> 🐟 Cure with Confidence — Because your aquarium deserves the best!

## Quick Answers

- **What is this?** Fritz Maracyn - for Saltwater and Freshwater gram-Positive Relief from Bacterial gil, Popeye, More - Easy dose Packets, 20 Count by fritz
- **How much does it cost?** 751 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/634092082-fritz-maracyn-for-saltwater-and-freshwater-gram-positive-relief-from)

## Best For

- fritz enthusiasts

## Why This Product

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

## Key Features

- • **Rapid Symptom Relief:** Effectively combats fin rot, popeye, mouth fungus, and more within days.
- • **Aquarium Health Reset:** Supports recovery by eliminating harmful bacteria while you manage water quality with ease.
- • **Powerful Gram-Positive Defense:** Clinically formulated with erythromycin to target a wide range of bacterial infections.
- • **Precision Dosing, Zero Guesswork:** Pre-measured packets ensure perfect treatment every time—no mess, no stress.
- • **Trusted by Pros, Loved by Hobbyists:** Highly rated and recommended for maintaining vibrant, healthy ornamental fish.

## Overview

Fritz Maracyn is a professional-grade antibiotic treatment designed for both saltwater and freshwater aquariums. Each of the 20 easy-dose packets treats 10 gallons, delivering precise, broad-spectrum relief from gram-positive bacterial infections like fin rot, popeye, and mouth fungus. Trusted by aquatic specialists and backed by strong user reviews, Maracyn ensures rapid symptom management and supports aquarium health with minimal hassle.

## Description

Maracyn 20 Count by Fritz

Review: After much research I discovered my Tetras had mouth rot. It is a bacterial infection. This product was recommended by the local pet store's Aquatic Specialist. I checked the reviews on desertcart as well. Maracyn received 4 and 5 star reviews. This product was much cheaper on desertcart compared to the local pet store. Maracyn treats a broad spectrum of gram positive infections. This product comes in pre measured packs. Each pack treats 10 gallons. No measuring and no mess. No worry about over or under dosing your fish. You have to remove all chemical filters before treatment. Maracyn will make your water cloudy. This product also strips your bio filter of good bacteria. You have to use an ammonia reducer (like Prime) because ammonia levels can spike during treatment. Keep an eye on your water. Test your water during treatment. I feel these are minimal side effects to ensure healthy fish. After day 3 the mouth rot was gone. I will complete the 5 day treatment plan as directed. Day 6 you do a 25% water change. Use all new filter media, including chemical media. I use Seachem Stability and Seachem Prime to cycle my aquarium faster, and establish my bio filter. I am very pleased with the results of Maracyn. It treats a broad range of gram positive bacterial infections. This product is easy to use. It is effective. By buying Maracyn on desertcart you will save money. I would highly recommend this product.
Review: This stuff worked amazingly for my fish. Stop the fin rot, my fish was experiencing after being moved to a new tank. I followed the directions, and it did make the water super cloudy the whole time. However, fret not; once you get to the end of the treatment, and do the 25% water change, the eater will clear after a day or two. My fish has since grown back its tail and lives happily within its tank. I recommend this product for sure.

## Features

- ❤️Broad-Spectrum Relief: Maracyn is a specialized antibiotic effective against a variety of pathogenic bacteria commonly associated with ornamental fish ailments.
- 🏥 Healthy Aquarium: Provides effective relief from bacterial infections such as body fungus, popeye, mouth fungus, open lesions, hemorrhagic and septicemia.
- 🐟 Symptom Management: Addresses symptoms of possible bacterial infection including clamped fins, swollen eyes, heavy or rapid breathing, patchy coloration, and changes in swimming behavior.
- 🙌 Professional Recommendation: Developed with erythromycin as the active ingredient, Maracyn is a trusted solution for treating bacterial infections in ornamental fish.
- 😊Immediate Treatment: It is crucial to treat suspected bacterial infections promptly to prevent further spread and ensure the well-being of aquarium fish.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D31Z3TQM |
| Batteries Included | No |
| Best Sellers Rank | #16,623 in Pet Supplies ( See Top 100 in Pet Supplies ) #130 in Fish Medication & Health Supplies |
| Color | Fritz |
| Customer Reviews | 4.7 4.7 out of 5 stars (207) |
| Date First Available | 5 June 2024 |
| Item Form | Liquid |
| Item Weight | 20 g |
| Item model number | 46002 |
| Number of Items | 1 |
| Package Dimensions | 14.4 x 9.7 x 3.3 cm; 20 g |
| Quantity | 1 |
| Specific Uses | Aquarium disease |
| batteries required | No |

## Product Details

- **Brand:** Fritz
- **Item form:** Liquid
- **Item weight:** 20 Grams
- **Manufacturer:** Fritz
- **UPC:** 080531460023

## Images

![Fritz Maracyn - for Saltwater and Freshwater gram-Positive Relief from Bacterial gil, Popeye, More - Easy dose Packets, 20 Count - Image 1](https://m.media-amazon.com/images/I/71HtUWufEiL.jpg)
![Fritz Maracyn - for Saltwater and Freshwater gram-Positive Relief from Bacterial gil, Popeye, More - Easy dose Packets, 20 Count - Image 2](https://m.media-amazon.com/images/I/815nIKChF6L.jpg)
![Fritz Maracyn - for Saltwater and Freshwater gram-Positive Relief from Bacterial gil, Popeye, More - Easy dose Packets, 20 Count - Image 3](https://m.media-amazon.com/images/I/816CVALvTXL.jpg)
![Fritz Maracyn - for Saltwater and Freshwater gram-Positive Relief from Bacterial gil, Popeye, More - Easy dose Packets, 20 Count - Image 4](https://m.media-amazon.com/images/I/81S2IODOSYL.jpg)
![Fritz Maracyn - for Saltwater and Freshwater gram-Positive Relief from Bacterial gil, Popeye, More - Easy dose Packets, 20 Count - Image 5](https://m.media-amazon.com/images/I/81UktnrlwSL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by L***N on 14 December 2024*

After much research I discovered my Tetras had mouth rot. It is a bacterial infection. This product was recommended by the local pet store's Aquatic Specialist. I checked the reviews on Amazon as well. Maracyn received 4 and 5 star reviews. This product was much cheaper on Amazon compared to the local pet store. Maracyn treats a broad spectrum of gram positive infections. This product comes in pre measured packs. Each pack treats 10 gallons. No measuring and no mess. No worry about over or under dosing your fish. You have to remove all chemical filters before treatment. Maracyn will make your water cloudy. This product also strips your bio filter of good bacteria. You have to use an ammonia reducer (like Prime) because ammonia levels can spike during treatment. Keep an eye on your water. Test your water during treatment. I feel these are minimal side effects to ensure healthy fish. After day 3 the mouth rot was gone. I will complete the 5 day treatment plan as directed. Day 6 you do a 25% water change. Use all new filter media, including chemical media. I use Seachem Stability and Seachem Prime to cycle my aquarium faster, and establish my bio filter. I am very pleased with the results of Maracyn. It treats a broad range of gram positive bacterial infections. This product is easy to use. It is effective. By buying Maracyn on Amazon you will save money. I would highly recommend this product.

### ⭐⭐⭐⭐⭐ Review
*by M***S on 30 June 2025*

This stuff worked amazingly for my fish. Stop the fin rot, my fish was experiencing after being moved to a new tank. I followed the directions, and it did make the water super cloudy the whole time. However, fret not; once you get to the end of the treatment, and do the 25% water change, the eater will clear after a day or two. My fish has since grown back its tail and lives happily within its tank. I recommend this product for sure.

### ⭐⭐⭐⭐⭐ Review
*by E***Y on 20 November 2025*

Was very happy to get this,though we were disappointed that it took so long to get to us in Downeast Maine. We ended up losing a few fish before it arrived. Sometimes our shipments are delayed by a week or more,which normally wouldn't matter,but in this case it did. The product did however save our remaining fish and our snail Wendell didn't seem to suffer any ill affects from being in the tank with the treated fish. I would highly recommend ordering this before you have an actual problem so you have it on hand to start treatment immediately, unless you live in a more metropolitan area that gets deliveries within a day or two.

## Frequently Bought Together

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-01-31*