--- product_id: 50437414 title: "JBL Denitrol 250 ml, Bacteria starter for adding aquarium fish to freshwater and saltwater aquariums" brand: "jbl" price: "AED 156" currency: AED in_stock: true reviews_count: 13 category: "Jbl" url: https://www.desertcart.ae/products/50437414-jbl-denitrol-250-ml-bacteria-starter-for-adding-aquarium-fish store_origin: AE region: United Arab Emirates --- # Supports freshwater & saltwater Rapid pollutant breakdown Live bacteria + enzymes JBL Denitrol 250 ml, Bacteria starter for adding aquarium fish to freshwater and saltwater aquariums **Brand:** jbl **Price:** AED 156 **Availability:** ✅ In Stock ## Summary > 🐟 Transform your tank, transform your vibe. ## Quick Answers - **What is this?** JBL Denitrol 250 ml, Bacteria starter for adding aquarium fish to freshwater and saltwater aquariums by jbl - **How much does it cost?** AED 156 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ae](https://www.desertcart.ae/products/50437414-jbl-denitrol-250-ml-bacteria-starter-for-adding-aquarium-fish) ## Best For - jbl enthusiasts ## Why This Product - Trusted jbl brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Combat Fish Diseases:** Use after illness or water changes to restore balance and keep your aquatic pets thriving. - • **Effortless Application:** Simple dosing lid ensures precise measurement and even distribution—no guesswork, just healthy water. - • **Trusted by Enthusiasts:** Highly rated with 4.6 stars and glowing reviews—join thousands who’ve transformed their tanks. - • **Universal Compatibility:** Perfectly formulated for freshwater, saltwater, turtle, and shrimp tanks—one solution for all aquatic habitats. - • **Accelerate Aquarium Cycling:** Jumpstart your tank’s ecosystem with potent live bacteria and enzymes for fast pollutant breakdown. ## Overview Denitrol is a 250 ml liquid bacterial starter designed to rapidly establish and maintain healthy aquarium water by introducing live bacteria and enzymes that break down fish waste and pollutants. Suitable for freshwater, saltwater, turtle, and shrimp tanks, it simplifies aquarium cycling, supports recovery after fish diseases, and ensures a balanced aquatic environment with easy dosing and proven effectiveness. ## Description From the manufacturer Healthy water, healthy fish Bacteria starter for healthy, balanced aquarium water Fish and invertebrates should feel as comfortable in the aquarium as they do in nature. Set up the aquarium in a biotope-friendly way and protect the fish in a natural way. When setting up a new aquarium and changing part of the water, the aquarium needs healthy bacteria to clean itself and to break down pollutants quickly. JBL Denitrol Aquarium Starter contains highly active, useful bacteria which break down ammonia and nitrite in the water. At the same time, fish excretions and other waste are removed. When using JBL Denitrol (ideally shortly after adding JBL Biotopol), high quantities of bacteria are immediately added to the aquarium water. When the first fish are added the next day, these bacteria are fed and begin to multiply. This ensures that there are enough bacteria right from the start and that neither ammonium/ammonia nor nitrite become a problem. Key Benefits Degradation of protein, ammonium/ammonia and nitrite by highly active live bacteria Healthy, balanced water Dosage Distribute Denitrol evenly in the tank. You can simply measure the appropriate amount in the dosage lid and then apply it. For new set-ups and diseases, use 10 ml per 100 l of water and for a water change 10 ml per 300 l of water. For generations, innovation come out of love for animals Today in its third generation, the family business is engaged worldwide and permanently sets new benchmarks through active research. With its product base in Germany, JBL takes social responsibility and ensures high quality in products for aquariums, terrariums and garden ponds. Review: Game changer. - Can't praise this enough. Had a small issue and by the next morning it had cleared it up. Not often products do exactly what they say but this one did. Well worthy of 5* and have now moved over to this brands products after being unsatisfied by another leading named brand. If you're looking and needing a bit of help cycling buy this now. Review: Eliminate nitrites - After struggling with high nitrites and water change after water change I put two bottles of this in my 950 ltr tank and left it alone 2 days later nitrites reading nearly none existent I expect tomorrow they will be at zero. Fish looking amazing and now I know which products do and dont work. ## Features - For aquarium water to suit both fish and plants: when setting up a new aquarium, water changes and after fish diseases for freshwater and saltwater aquariums, turtle and shrimp tanks - Shake the bottle well, measure the right amount in the dosing lid and evenly distribute in the aquarium - Live bacteria with enzymes for the rapid breakdown of pollutants - Healthy water, healthy fish: breakdown of fish excrement and other waste by means of special enzymes and cleansing bacteria - Contents: 1 bottle Denitrol. Use: 10 ml for 20 l water during initial setup and disease, 10 ml for 300 l water during water change ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000H6SQ5I | | Allergen Information | Abalone | | Best Sellers Rank | 36,020 in Pet Supplies ( See Top 100 in Pet Supplies ) 444 in Aquarium Water Treatments | | Brand | JBL | | Brand Name | JBL | | Country Of Origin | Germany | | Customer Reviews | 4.6 out of 5 stars 1,238 Reviews | | Global Trade Identification Number | 04014162230621 | | Included Components | x | | Item Form | Liquid | | Item Type Name | x | | Item Weight | 0.25 Kilograms | | Item form | Liquid | | Item weight | 0.25 Kilograms | | Liquid Volume | 250 Millilitres | | Liquid volume | 250 Millilitres | | Manufacturer | JBL | | Manufacturer Part Number | 2306200 | | Model Number | 2306200 | | Number of Packs | 1 | | Pet Type | Fish | | Target Species | Fish | | Unit Count | 250.0 millilitre | | Unit count | 250.0 millilitre | ## Product Details - **Brand:** JBL - **Item form:** Liquid - **Item weight:** 0.25 Kilograms - **Liquid volume:** 250 Millilitres - **Manufacturer:** JBL ## Images ![JBL Denitrol 250 ml, Bacteria starter for adding aquarium fish to freshwater and saltwater aquariums - Image 1](https://m.media-amazon.com/images/I/61IEPwTytwL.jpg) ![JBL Denitrol 250 ml, Bacteria starter for adding aquarium fish to freshwater and saltwater aquariums - Image 2](https://m.media-amazon.com/images/I/81xRwd+TCeL.jpg) ![JBL Denitrol 250 ml, Bacteria starter for adding aquarium fish to freshwater and saltwater aquariums - Image 3](https://m.media-amazon.com/images/I/71xSvSCJjQL.jpg) ## Questions & Answers **Q: Can u use this in well established aquarium** A: Yes we have always used it a couple of hours after water changes ## Customer Reviews ### ⭐⭐⭐⭐⭐ Game changer. *by P***M on 21 September 2025* Can't praise this enough. Had a small issue and by the next morning it had cleared it up. Not often products do exactly what they say but this one did. Well worthy of 5* and have now moved over to this brands products after being unsatisfied by another leading named brand. If you're looking and needing a bit of help cycling buy this now. ### ⭐⭐⭐⭐⭐ Eliminate nitrites *by B***N on 18 November 2025* After struggling with high nitrites and water change after water change I put two bottles of this in my 950 ltr tank and left it alone 2 days later nitrites reading nearly none existent I expect tomorrow they will be at zero. Fish looking amazing and now I know which products do and dont work. ### ⭐⭐⭐⭐⭐ Does what it says on the tin. *by M***T on 8 May 2017* I've been sceptical of bacteria in a bottle but decided to give it a go when setting up a 350L planted tank. I already had a couple of small tanks and was moving house at the time so I needed to be able to get the fish in the new tank ASAP. This was the perfect product for that. Within a few (3-4) days the tank had fully cycled. Daily tests showed the ammonia (from the soil) drop, nitrite rise and then fall, leaving behind a large amount of nitrate which cleared with a big water change. This only worked as well as it did for me because the soil I used leached a fair amount of ammonia for the bacteria to feed on. Make sure you have a source of ammonia either by adding it manually, through aquarium soil, or by adding a few fish as per bottle instructions. I'd recommend the first two options over adding fish but I appreciate in some situations (like moving house) this wont always be an option. Brilliant product, highly recommended especially for planted tanks, but please follow the instructions or it wont work. ## Frequently Bought Together - JBL Denitrol 250 ml, Bacteria starter for adding aquarium fish to freshwater and saltwater aquariums - JBL Biotopol - Aquarium Water Conditioner 250ml - Tetra Nitrateminus Liquid, 250 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.ae/products/50437414-jbl-denitrol-250-ml-bacteria-starter-for-adding-aquarium-fish](https://www.desertcart.ae/products/50437414-jbl-denitrol-250-ml-bacteria-starter-for-adding-aquarium-fish) --- *Product available on Desertcart United Arab Emirates* *Store origin: AE* *Last updated: 2026-06-01*