---
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: "€ 99.88"
currency: EUR
in_stock: true
reviews_count: 5
category: "Fritz"
url: https://www.desertcart.fi/products/634092082-fritz-maracyn-for-saltwater-and-freshwater-gram-positive-relief-from
store_origin: FI
region: Finland
---

# Effective on salt & freshwater Easy single-dose packets Broad-spectrum antibiotic Fritz Maracyn - for Saltwater and Freshwater gram-Positive Relief from Bacterial gil, Popeye, More - Easy dose Packets, 20 Count

**Brand:** fritz
**Price:** € 99.88
**Availability:** ✅ In Stock

## Summary

> 💧 Keep your tank thriving with precision care – because your fish deserve 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?** € 99.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/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:** Quickly addresses visible signs like popeye, body fungus, and open lesions to restore fish vitality.
- • **Dual Habitat Compatibility:** Formulated for both saltwater and freshwater tanks, ensuring versatile protection.
- • **Precision Dosing Convenience:** Pre-measured packets eliminate guesswork, making treatment hassle-free and accurate.
- • **Trusted Professional Formula:** Powered by erythromycin, a clinically recommended antibiotic trusted by aquatic health experts.
- • **Broad-Spectrum Bacterial Defense:** Targets a wide range of gram-positive pathogens to keep your aquatic ecosystem thriving.

## Overview

Fritz Maracyn is a liquid antibiotic treatment designed for both saltwater and freshwater aquariums. It delivers broad-spectrum relief against gram-positive bacterial infections such as popeye, body fungus, and open lesions. Packaged in easy-to-use single-dose packets, it ensures precise dosing and rapid symptom management, helping aquarium enthusiasts maintain healthy, vibrant fish with a trusted erythromycin-based formula.

## Description

Maracyn 20 Count by Fritz

Review: 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.
Review: Great value for money. This is one of my go-to medications for my tank. The fish seem healthy and the quality of the medication is sprayed. Color is consistent and as long as you don't eat it, it's safe.

## 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 | #24,721 in Pet Supplies ( See Top 100 in Pet Supplies ) #200 in Fish Medication & Health Supplies |
| Color | Fritz |
| Customer Reviews | 4.7 4.7 out of 5 stars (217) |
| 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/816CVALvTXL.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/815nIKChF6L.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/81UktnrlwSL.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/81xUTm6wphL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Review
*by L***A on 13 August 2025*

Great value for money. This is one of my go-to medications for my tank. The fish seem healthy and the quality of the medication is sprayed. Color is consistent and as long as you don't eat it, it's safe.

### ⭐⭐⭐⭐⭐ 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.

## Frequently Bought Together

- Fritz Maracyn - for Saltwater and Freshwater gram-Positive Relief from Bacterial gil, Popeye, More - Easy dose Packets, 20 Count
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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-15*