---
product_id: 7733410
title: "FritzZyme 7 Live Nitrifying Bacteria Naturally Removes Amonia & Nitrite for Freshwater Fish (32-Ounce)"
brand: "fritz aquatics"
price: "297 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Fritz Aquatics"
url: https://www.desertcart.ro/products/7733410-fritzzyme-7-live-nitrifying-bacteria-naturally-removes-amonia-and-nitrite
store_origin: RO
region: Romania
---

# Works in fresh & brackish water systems Live nitrifying bacteria for rapid ammonia & nitrite removal One-year shelf life, no refrigeration needed FritzZyme 7 Live Nitrifying Bacteria Naturally Removes Amonia & Nitrite for Freshwater Fish (32-Ounce)

**Brand:** fritz aquatics
**Price:** 297 Lei
**Availability:** ✅ In Stock

## Summary

> 🐠 Transform your aquarium’s health with the power of live bacteria—don’t let your fish miss out!

## Quick Answers

- **What is this?** FritzZyme 7 Live Nitrifying Bacteria Naturally Removes Amonia & Nitrite for Freshwater Fish (32-Ounce) by fritz aquatics
- **How much does it cost?** 297 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/7733410-fritzzyme-7-live-nitrifying-bacteria-naturally-removes-amonia-and-nitrite)

## Best For

- fritz aquatics enthusiasts

## Why This Product

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

## Key Features

- • **Ready When You Are:** Buffered for stability with a full year shelf life—no fridge, no hassle.
- • **Universal Aquatic Ally:** Perfect for fresh and brackish water—ideal post-maintenance or adding new livestock.
- • **Trusted Industry Leader:** Backed by 30+ years of proven success in professional and home aquariums.
- • **Cycle Tanks Faster, Stress Less:** Rapidly reduces toxic ammonia & nitrite, slashing cycle time and fish loss.
- • **Keep Your Biofilter Bulletproof:** Reinforces biofilters after cleaning or filter changes to maintain aquatic health.

## Overview

FritzZyme 7 delivers live, species-specific nitrifying bacteria that rapidly eliminate toxic ammonia and nitrite in freshwater and brackish aquariums. With over 30 years of industry leadership, this easy-to-use, no-refrigeration formula accelerates biofilter cycling and maintains aquatic stability, ensuring a healthier environment for your fish with less wait and worry.

## Description

FritzZyme 7 contains specific strains of live nitrifying bacteria proven to reduce fish loss due to toxic levels of ammonia and nitrite. Nitrifying bacteria can take weeks to naturally establish colonies in new aquariums while ammonia and nitrite can reach lethal levels in only a few days. FritzZyme 7 provides the proper balance of bacteria proven to rapidly seed biofilters, greatly reducing the natural cycle time allowing for safe, immediate addition of livestock. Fritz Industries was the first company to pioneer commercial-scale cultivation of nitrifying bacteria and has remained one of only a few in the world with continuous production for over 30 years. FritzZyme 7 may be added to new tanks or established systems any time the biofilter needs fortification including: after water changes, aggressive cleaning, adding new livestock, medicating or changing filter media. FritzZyme 7 contains live freshwater-specific species of nitrifying bacteria.

Review: I'm impressed! Don't wait on getting this product! - This is my first time using this product. The reviews spoke highly of this company. I started with ghost feeding the first week, but wasn't getting as much ammonia as I wanted to begin the cycle. I got the ammonia that goes along with this bacteria in a bottle. Got the ammonia up to 4ppm 2 nights ago. Yesterday, this bottle came in, and I dosed it as recommended. This morning I did my tank parameter testing with the API Master Kit. In my cycling tank it read 2.0ppm ammonia, 0 nitrites, and 5.0ppm nitrates! It just skipped right over nitrites! That tells me this product is VERY effective! Considering it's taken me months to cycle other tanks, this is mind blowing to me. I'm glad I listened to experienced folks that using high quality ammonia and live nitrifying bacteria is FAR superior to ghost feeding. I purchased the smallest bottles they have, and I'll still have nearly all of it! Well, I guess that means I'm just going to have to get more aquariums, ha! It's so easy I'm still processing this. Don't sleep on these products, the value far exceeds their price! I'm also glad this can be used as a maintenance for established tanks. It will be a great product to have on hand to maintain a well functioning cycle.
Review: Quick source of beneficial bacteria. - Having trouble starting or completing the nitrogen cycle in your aquarium? Need more beneficial bacteria? Use this product, in a heavy dose. IT WORKS !

## Features

- 🐟 Live Nitrifying Bacteria for Rapid Cycle: FritzZyme 7 Freshwater contains live, species-specific strains of nitrifying bacteria, proven to quickly reduce toxic ammonia and nitrite levels, significantly reducing fish loss and cycle time in new and established aquariums.
- 🌊 Versatile and Easy-to-Use: Ideal for use in both fresh and brackish water systems, FritzZyme 7 is perfect for post-maintenance applications, after water changes, aggressive cleaning, adding new livestock, or when changing filter media, ensuring a stable and healthy aquatic environment.
- 🙌 No Refrigeration Needed with One Year Shelf Life: This product is uniquely buffered for long-term stability, eliminating the need for refrigeration and offering a convenient one-year shelf life, making it a hassle-free solution for aquarium maintenance.
- ⭐ Proven Success in Aquatic Care: With over 30 years of continuous production and development, Fritz Aquatics is a leader in the industry, delivering the highest quality, viable nitrifying bacteria. This product represents years of proven success in professional and home aquariums alike.
- ❤️ Benefits Beyond Cycling: FritzZyme 7 not only accelerates the establishment of biofilters in new tanks but is also essential in reinforcing the biofilter after any system disturbance, ensuring ongoing stability and health for your aquatic pets.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Fritz Aquatics |
| Customer Reviews | 4.6 out of 5 stars 3,338 Reviews |
| Item Form | Liquid |
| Item Weight | 0.3 Ounces |
| Liquid Volume | 32 Fluid Ounces |
| Manufacturer | Fritz Aquatics |
| UPC | 080531802106 |

## Product Details

- **Brand:** Fritz Aquatics
- **Liquid Volume:** 32 Fluid Ounces
- **Item Weight:** 0.3 Ounces
- **Item Form:** Liquid
- **Manufacturer:** Fritz Aquatics

## Images

![FritzZyme 7 Live Nitrifying Bacteria Naturally Removes Amonia & Nitrite for Freshwater Fish (32-Ounce) - Image 1](https://m.media-amazon.com/images/I/71XmBXqgQ0L.jpg)

## Available Options

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

## Questions & Answers

**Q: Would this be good for kickstarting a new aquaponics system?**
A: Yes.   It works excellent.

**Q: So just got my gallon jug in... It has a slight odor to it but its pink in color, not dark or anything...is it still good?**
A: Absolutely. I have used a lot of this stuff, and have received it in slightly brown colors all the ways to the pinkish color, and it always has an earthy odor to it. It always has worked for me.

**Q: Will it work if I put it before adding ammonia to the tank?**
A: Assume you're using the ammonia to cycle/start a new tank? Pure ammonia is not to be added if there will be fish in the tank, only when doing a fish-less cycle; the fish and their waste will supply the ammonia for the bacteria to grow and survive; be sure to keep testing the parameters of the water with a test kit; look up the nitrogen cycle

**Q: Is it supposed to be pink/purple? Thank you.**
A: I havent seen a purple color yet so far. Mine been a light to dark pink color.

## Customer Reviews

### ⭐⭐⭐⭐⭐ I'm impressed! Don't wait on getting this product!
*by R***L on August 4, 2025*

This is my first time using this product. The reviews spoke highly of this company. I started with ghost feeding the first week, but wasn't getting as much ammonia as I wanted to begin the cycle. I got the ammonia that goes along with this bacteria in a bottle. Got the ammonia up to 4ppm 2 nights ago. Yesterday, this bottle came in, and I dosed it as recommended. This morning I did my tank parameter testing with the API Master Kit. In my cycling tank it read 2.0ppm ammonia, 0 nitrites, and 5.0ppm nitrates! It just skipped right over nitrites! That tells me this product is VERY effective! Considering it's taken me months to cycle other tanks, this is mind blowing to me. I'm glad I listened to experienced folks that using high quality ammonia and live nitrifying bacteria is FAR superior to ghost feeding. I purchased the smallest bottles they have, and I'll still have nearly all of it! Well, I guess that means I'm just going to have to get more aquariums, ha! It's so easy I'm still processing this. Don't sleep on these products, the value far exceeds their price! I'm also glad this can be used as a maintenance for established tanks. It will be a great product to have on hand to maintain a well functioning cycle.

### ⭐⭐⭐⭐⭐ Quick source of beneficial bacteria.
*by A***J on January 17, 2026*

Having trouble starting or completing the nitrogen cycle in your aquarium? Need more beneficial bacteria? Use this product, in a heavy dose. IT WORKS !

### ⭐⭐⭐⭐⭐ Contains no ammonia / UPDATE
*by D***L on May 28, 2025*

My concern were the reviews that said it had “ammonia”. However, most tap water has ammonia, mine does. So I cannot test this product using tap water. Or else it would give a false positive result. Also, the smell of “rotten eggs” is a byproduct of bacteria “sulfur” - so it’s normal to smell this. For the test. I used a sample of water from an established tank that already has 0 ammonia and added FritzZyme 7 to it. Using the API ammonia liquid test, results are FritzZyme 7 does NOT contain ammonia. Looking forward to how this works on my tanks that need a fortification of BB. UPDATE: 1 week later, decided to use it on a newer tank to test its full potential and it cycled (day 1: 5/28/25 and today 6/3 final results)! Amazing! Tip, if doing IN-Fish cycle, make sure to watch any spikes in ammonia, nitrite, nirate, or PH daily. If needed do small WC, don’t mess with the substrate or filter when doing so, and let the cycle do its thing to keep your fish safe. Trust the process. This product did what it said it would do. Using it now to fortify my other tanks.

## Frequently Bought Together

- Fritz Aquatics FritzZyme 7 Live Nitrifying Bacteria Naturally Removes Amonia & Nitrite for Freshwater Fish (32-Ounce)
- Seachem Prime Fresh and Saltwater Conditioner - Chemical Remover and Detoxifier 500 ml
- API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-colored

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-09*