--- product_id: 254336956 title: "Fritz Aquatics FritzZyme 7 Live Nitrifying Bacteria Naturally Removes Amonia & Nitrite for Freshwater Fish (16-Ounce)" brand: "fritz" price: "€ 49.77" currency: EUR in_stock: true reviews_count: 5 category: "Fritz" url: https://www.desertcart.hr/products/254336956-fritz-aquatics-fritzzyme-7-live-nitrifying-bacteria-naturally-removes-amonia store_origin: HR region: Croatia --- # 1-year shelf life, no refrigeration Rapid ammonia & nitrite reduction Live, species-specific nitrifying bacteria Fritz Aquatics FritzZyme 7 Live Nitrifying Bacteria Naturally Removes Amonia & Nitrite for Freshwater Fish (16-Ounce) **Brand:** fritz **Price:** € 49.77 **Availability:** ✅ In Stock ## Summary > 🐠 Transform your aquarium’s health with science-backed speed and stability! ## Quick Answers - **What is this?** Fritz Aquatics FritzZyme 7 Live Nitrifying Bacteria Naturally Removes Amonia & Nitrite for Freshwater Fish (16-Ounce) by fritz - **How much does it cost?** € 49.77 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/254336956-fritz-aquatics-fritzzyme-7-live-nitrifying-bacteria-naturally-removes-amonia) ## 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 - • **Hassle-Free Storage:** Buffered formula lasts 1 year without refrigeration—ready when you are. - • **Trusted Industry Leader:** 30+ years pioneering nitrifying bacteria for professional-grade aquatic care. - • **Cycle Tanks in Record Time:** Slash toxic ammonia & nitrite fast with proven live bacteria strains. - • **Stabilize & Protect Your Biofilter:** Reinforce your tank’s health after cleaning, livestock changes, or filter swaps. - • **Versatile for Fresh & Brackish Water:** Perfect for any aquarium environment or post-maintenance boost. ## Overview FritzZyme 7 delivers live, freshwater-specific nitrifying bacteria that rapidly reduce toxic ammonia and nitrite, accelerating aquarium cycling and stabilizing biofilters. With over 30 years of industry leadership, this easy-to-use, no-refrigeration-needed formula ensures a healthy aquatic environment for both new and established tanks. ## 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: Beat on the market to instantly cycle tanks - Brilliant Review: PRODUCTO YA CADUCADO - El producto llegó caducado. ## 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 | | Allergen Information | Almonds Free | | Best Sellers Rank | #31,959 in Pet Supplies ( See Top 100 in Pet Supplies ) #251 in Fish Medication & Health Supplies | | Brand | Fritz | | Brand Name | Fritz | | Customer Reviews | 4.6 out of 5 stars 1,955 Reviews | | Global Trade Identification Number | 00080531802090 | | Included Components | Fritz Aquatics 80209 FritzZyme 7 Nitrifying Bacteria for Fresh Water Aquariums, 16-Ounce | | 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 form | Liquid | | Item weight | 0.3 Ounces | | Liquid Volume | 473 Milliliters | | Liquid volume | 473 Milliliters | | Manufacturer | Fritz Aquatics | | Manufacturer Part Number | 80209 | | Model Number | 80209 | | Number of Packs | 1 | | Target Species | Fish | | UPC | 080531802090 | | Unit Count | 1 Count | | Unit count | 1 Count | ## Product Details - **Brand:** Fritz - **Item form:** Liquid - **Item weight:** 0.3 Ounces - **Liquid volume:** 473 Milliliters - **Unit count:** 1 Count ## 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) ## 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 ### ⭐⭐⭐⭐⭐ Beat on the market to instantly cycle tanks *by M***Y on 22 February 2022* Brilliant ### ⭐ PRODUCTO YA CADUCADO *by L***S on 1 October 2024* El producto llegó caducado. ### ⭐⭐⭐⭐⭐ I'm impressed! Don't wait on getting this product! *by R***L on 4 August 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.hr/products/254336956-fritz-aquatics-fritzzyme-7-live-nitrifying-bacteria-naturally-removes-amonia](https://www.desertcart.hr/products/254336956-fritz-aquatics-fritzzyme-7-live-nitrifying-bacteria-naturally-removes-amonia) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-31*