--- product_id: 3269493 title: "Fritz Aquatics FritzZyme 7 Live Nitrifying Bacteria Naturally Removes Amonia & Nitrite for Freshwater Fish (16-Ounce)" brand: "fritz aquatics" price: "VT1638" currency: VUV in_stock: false reviews_count: 13 url: https://www.desertcart.vu/products/3269493-fritz-aquatics-fritzzyme-7-live-nitrifying-bacteria-naturally-removes-amonia store_origin: VU region: Vanuatu --- # Fresh & brackish water versatile Rapid nitrifying bacteria action 1-year shelf life, no fridge needed Fritz Aquatics FritzZyme 7 Live Nitrifying Bacteria Naturally Removes Amonia & Nitrite for Freshwater Fish (16-Ounce) **Brand:** fritz aquatics **Price:** VT1638 **Availability:** ❌ Out of Stock ## Summary > 🐠 Transform your tank’s ecosystem—fast, fresh, and foolproof! ## Quick Answers - **What is this?** Fritz Aquatics FritzZyme 7 Live Nitrifying Bacteria Naturally Removes Amonia & Nitrite for Freshwater Fish (16-Ounce) by fritz aquatics - **How much does it cost?** VT1638 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/3269493-fritz-aquatics-fritzzyme-7-live-nitrifying-bacteria-naturally-removes-amonia) ## 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 - • **Cycle Tanks Faster:** Live, species-specific bacteria slashing ammonia & nitrite buildup for safer, quicker fish additions. - • **Hassle-Free Storage:** Buffered formula with a full year shelf life—no refrigeration, no stress, just ready when you are. - • **Biofilter Reinforcement:** Essential for post-maintenance and system disturbances to keep your aquatic ecosystem thriving. - • **Trusted Industry Leader:** Backed by 30+ years of continuous production and proven success in professional and home aquariums. - • **Universal Water Compatibility:** Perfectly balanced for fresh and brackish water systems—your all-in-one aquatic stabilizer. ## Overview FritzZyme 7 delivers live, freshwater-specific nitrifying bacteria that rapidly reduce toxic ammonia and nitrite levels, accelerating aquarium cycling and stabilizing biofilters. Suitable for fresh and brackish water, it requires no refrigeration and offers a one-year shelf life. Trusted for over 30 years, it’s the go-to solution for both new setups and ongoing aquatic health maintenance. ## 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: This is necessary for all fish tanks. - I’ve used this on my tanks and friends’ tanks with struggling eco systems, it is WORTH IT! Soon after adding it, you start seeing the micro organisms responsible for keeping your water clean and your filter working well. I would recommend this to any aquarist as a basic need.👍 Review: Contains no ammonia / UPDATE - 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. ## 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 | |---------------|-------| | ASIN | B0002DGKAO | | ASIN | B0002DGKAO | | Allergen Information | Almonds Free | | Best Sellers Rank | #6,794 in Pet Supplies ( See Top 100 in Pet Supplies ) #47 in Aquarium Water Treatments | | Brand Name | Fritz Aquatics | | Customer Reviews | 4.6 4.6 out of 5 stars (3,369) | | Date First Available | March 2, 2012 | | Department | Unisex-Adult | | Global Trade Identification Number | 00080531802090 | | Included Components | Fritz Aquatics 80209 FritzZyme 7 Nitrifying Bacteria for Fresh Water Aquariums, 16-Ounce | | Is Discontinued By Manufacturer | No | | Item Form | Liquid | | Item Type Name | Fritz Aquatics 80209 FritzZyme 7 Nitrifying Bacteria for Fresh Water Aquariums, 16-Ounce | | Item Weight | 0.3 Ounces | | Item model number | 80209 | | Liquid Volume | 473 Milliliters | | Manufacturer | Fritz Aquatics | | Manufacturer | Fritz Aquatics | | Manufacturer Part Number | 80209 | | Model Number | 80209 | | Product Dimensions | 0.02 x 0.02 x 0.02 inches; 0.3 ounces | | Target Species | Fish | | UPC | 080531802090 | | Unit Count | 1 Count | | Warranty Description | See Manufacturers Website | ## Product Details - **Brand:** Fritz Aquatics - **Item Form:** Liquid - **Item Weight:** 0.3 Ounces - **Liquid Volume:** 473 Milliliters - **Manufacturer:** Fritz Aquatics ## Images ![Fritz Aquatics FritzZyme 7 Live Nitrifying Bacteria Naturally Removes Amonia & Nitrite for Freshwater Fish (16-Ounce) - Image 1](https://m.media-amazon.com/images/I/61wqrjhurwL.jpg) ![Fritz Aquatics FritzZyme 7 Live Nitrifying Bacteria Naturally Removes Amonia & Nitrite for Freshwater Fish (16-Ounce) - Image 2](https://m.media-amazon.com/images/I/71E5zDHzQoL.jpg) ![Fritz Aquatics FritzZyme 7 Live Nitrifying Bacteria Naturally Removes Amonia & Nitrite for Freshwater Fish (16-Ounce) - Image 3](https://m.media-amazon.com/images/I/718KUi0MteL.jpg) ![Fritz Aquatics FritzZyme 7 Live Nitrifying Bacteria Naturally Removes Amonia & Nitrite for Freshwater Fish (16-Ounce) - Image 4](https://m.media-amazon.com/images/I/81lz+6vbKpL.jpg) ![Fritz Aquatics FritzZyme 7 Live Nitrifying Bacteria Naturally Removes Amonia & Nitrite for Freshwater Fish (16-Ounce) - Image 5](https://m.media-amazon.com/images/I/81-X7U3CBSL.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 ### ⭐⭐⭐⭐⭐ This is necessary for all fish tanks. *by C***A on February 23, 2026* I’ve used this on my tanks and friends’ tanks with struggling eco systems, it is WORTH IT! Soon after adding it, you start seeing the micro organisms responsible for keeping your water clean and your filter working well. I would recommend this to any aquarist as a basic need.👍 ### ⭐⭐⭐⭐⭐ 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. ### ⭐⭐⭐⭐⭐ 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. ## Frequently Bought Together - Fritz Aquatics FritzZyme 7 Live Nitrifying Bacteria Naturally Removes Amonia & Nitrite for Freshwater Fish (16-Ounce) - API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-colored - Seachem Prime Fresh and Saltwater Conditioner - Chemical Remover and Detoxifier 500 ml --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/3269493-fritz-aquatics-fritzzyme-7-live-nitrifying-bacteria-naturally-removes-amonia](https://www.desertcart.vu/products/3269493-fritz-aquatics-fritzzyme-7-live-nitrifying-bacteria-naturally-removes-amonia) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-13*