--- product_id: 429128923 title: "Fritz Aquatics Zyme 7 | Size: 946ml (32oz) | Freshwater Nitrifying Bacteria for Aquarium | Indian Fish Monsters (IFM)" brand: "fritz aquatics" price: "388.84 DT" currency: TND in_stock: true reviews_count: 5 category: "Fritz Aquatics" url: https://www.desertcart.tn/products/429128923-fritz-aquatics-zyme-7-size-946ml-32oz-freshwater-nitrifying-bacteria store_origin: TN region: Tunisia --- # 1-year shelf life, no refrigeration needed Rapid ammonia & nitrite reduction Live species-specific nitrifying bacteria Fritz Aquatics Zyme 7 | Size: 946ml (32oz) | Freshwater Nitrifying Bacteria for Aquarium | Indian Fish Monsters (IFM) **Brand:** fritz aquatics **Price:** 388.84 DT **Availability:** ✅ In Stock ## Summary > 🐠 Transform your aquarium’s health with science-backed speed and stability! ## Quick Answers - **What is this?** Fritz Aquatics Zyme 7 | Size: 946ml (32oz) | Freshwater Nitrifying Bacteria for Aquarium | Indian Fish Monsters (IFM) by fritz aquatics - **How much does it cost?** 388.84 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/429128923-fritz-aquatics-zyme-7-size-946ml-32oz-freshwater-nitrifying-bacteria) ## 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 - • **Biofilter Boost Anytime:** Reinforce your tank’s natural filtration after cleaning, water changes, or filter swaps for ongoing stability. - • **Trusted Industry Leader:** Backed by 30+ years of pioneering expertise in live nitrifying bacteria cultivation. - • **Cycle Faster, Fish Safer:** Slash toxic ammonia & nitrite levels quickly to protect your aquatic pets from day one. - • **Shelf-Stable Convenience:** No fridge? No problem. Buffered formula stays potent for a full year on your shelf. - • **Versatile for Every Tank:** Perfect for fresh & brackish water systems, post-maintenance, or adding new livestock without stress. ## Overview Fritz Aquatics Zyme 7 is a 946ml liquid solution containing live, freshwater-specific nitrifying bacteria that rapidly reduce toxic ammonia and nitrite levels. Designed for both new and established aquariums, it accelerates biofilter cycling and maintains water quality after maintenance or livestock changes. With a unique buffered formula, it offers a one-year shelf life without refrigeration, backed by over 30 years of industry-leading expertise. ## 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: Great product - This stuff always works for me, especially if I have light stock in my tank. I do fish in cycles all the time and never had any issues with fish dying on me thanks to this product. You could prevent ammonia, nitrite, and nitrate spikes by adding like 4-5 small fish to your aquarium. Don’t add too many fish! More fish means more waste, which your new system won’t be able to handle. Add easy aquarium plants (Hornwort, Salvania minima, Brazilian Pennywort) as many as you can. You need plants plus this product for a successful fish in cycle! Review: Very effective n good price - I emailed Fritz about some quries and their response was prompt and friendly. been using these for tanks and i do not need to add any salts or whatever. Fzz7 will stink like old eggs and a bit brownish but it is normal, not spoiled. Fritzguard is bluish and dun need it as much as Fzz7. Keep them normally in cabinet and use them every water change. Instructions are clear.. ## 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 | B0002DGKBI | | Allergen Information | Fish Free | | Brand | Fritz Aquatics | | Brand Name | Fritz Aquatics | | Customer Reviews | 4.6 out of 5 stars 1,255 Reviews | | Global Trade Identification Number | 00080531802106 | | Item Form | Liquid | | Item Type Name | Fritz Aquatics 80210 FritzZyme 7 Nitrifying Bacteria for Fresh Water Aquariums, 32-Ounce | | Item Weight | 0.3 Ounces | | Liquid Volume | 32 Fluid Ounces | | Manufacturer | Fritz Aquatics | | Manufacturer Part Number | 80210 | | Model Number | 80210 | | Net Quantity | 1 Count | | Number of Packs | 1 | | Target Species | Fish | | UPC | 080531802106 | | Unit Count | 1 Count | ## Product Details - **Brand:** Fritz Aquatics - **Item Form:** Liquid - **Item Weight:** 0.3 Ounces - **Liquid Volume:** 32 Fluid Ounces - **Manufacturer:** Fritz Aquatics ## Images ![Fritz Aquatics Zyme 7 | Size: 946ml (32oz) | Freshwater Nitrifying Bacteria for Aquarium | Indian Fish Monsters (IFM) - Image 1](https://m.media-amazon.com/images/I/71XmBXqgQ0L.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 ### ⭐⭐⭐⭐⭐ Great product *by N***M on 14 June 2026* This stuff always works for me, especially if I have light stock in my tank. I do fish in cycles all the time and never had any issues with fish dying on me thanks to this product. You could prevent ammonia, nitrite, and nitrate spikes by adding like 4-5 small fish to your aquarium. Don’t add too many fish! More fish means more waste, which your new system won’t be able to handle. Add easy aquarium plants (Hornwort, Salvania minima, Brazilian Pennywort) as many as you can. You need plants plus this product for a successful fish in cycle! ### ⭐⭐⭐⭐⭐ Very effective n good price *by J***E on 1 May 2023* I emailed Fritz about some quries and their response was prompt and friendly. been using these for tanks and i do not need to add any salts or whatever. Fzz7 will stink like old eggs and a bit brownish but it is normal, not spoiled. Fritzguard is bluish and dun need it as much as Fzz7. Keep them normally in cabinet and use them every water change. Instructions are clear.. ### ⭐⭐⭐⭐⭐ This stiff is really effective. *by T***G on 18 July 2022* I tried quite a no of other bacteria for my fish tank and found this to be the most effective. Only a small amount is needed for a stabilised tank. ## 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 --- ## 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.tn/products/429128923-fritz-aquatics-zyme-7-size-946ml-32oz-freshwater-nitrifying-bacteria](https://www.desertcart.tn/products/429128923-fritz-aquatics-zyme-7-size-946ml-32oz-freshwater-nitrifying-bacteria) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-17*