--- product_id: 209775039 title: "MicroBacter Start XLF Freshwater Tank Starter, 125 ml" brand: "brightwell aquatics" price: "1.10 OMR" currency: OMR in_stock: true url: https://www.desertcart.com.om/products/209775039-microbacter-start-xlf-freshwater-tank-starter-125-ml store_origin: OM region: Oman --- # 15x concentrated power supports high-density tanks cycles tank in 5-7 days MicroBacter Start XLF Freshwater Tank Starter, 125 ml **Brand:** brightwell aquatics **Price:** 1.10 OMR **Availability:** ✅ In Stock ## Summary > ⚡ Kickstart your aquarium’s ecosystem with science-backed power! ## Quick Answers - **What is this?** MicroBacter Start XLF Freshwater Tank Starter, 125 ml by brightwell aquatics - **How much does it cost?** 1.10 OMR with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/209775039-microbacter-start-xlf-freshwater-tank-starter-125-ml) ## Best For - brightwell aquatics enthusiasts ## Why This Product - Trusted brightwell aquatics brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Shrimp-Safe & Versatile:** Safe for shrimp and compatible with all freshwater setups, including planted and high-density tanks. - • **Post-Cleaning Recovery Hero:** Re-establishes essential bacteria quickly after tank cleaning or medication use to prevent stress and disease. - • **Fast-Track Aquarium Stability:** Achieve a balanced, ammonia-free environment in just 5-7 days—perfect when time is of the essence. - • **Proudly American-Made Quality:** Scientifically formulated and manufactured in the USA for unmatched reliability and longevity. - • **Turbocharge Your Tank's Biofilter:** Super concentrated 15x formula accelerates beneficial bacteria growth for rapid water cycling. ## Overview Brightwell Aquatics MicroBacter Start XLF is a 125 ml, 15x concentrated freshwater tank starter that rapidly establishes beneficial nitrifying bacteria within 5-7 days. Designed for high-density and shrimp-safe aquariums, it reduces ammonia and nitrite spikes, accelerates tank recovery post-cleaning or medication, and is made in the USA with a proprietary formula ensuring long shelf life and maximum efficacy. ## Description Brightwell Aquatics MicroBacter Start XLF Experience a new level of aquarium care with Brightwell Aquatics MicroBacter Start XLF – the ultimate solution for achieving a balanced and thriving aquatic environment. Our concentrated formula is designed to boost the nitrogen cycle in your aquarium, ensuring the rapid establishment of biological filtration and creating a stable habitat for your aquatic companions. It’s particularly useful for new startups, resulting in tank cycling in 5 to 7 days in most cases. This shrimp safe advanced blend works effectively to break down organic waste, keeping your aquarium water pristine. It is meticulously formulated to enhance water quality and eliminate ammonia and nitrite spikes. Whether you're setting up a new tank or maintaining an established one, MicroBacter Start XLF is your go-to solution. Its versatility extends to fish and invertebrate freshwater aquariums and is particularly effective for live planted aquariums, providing powerful support for a diverse range of aquatic environments. FEATURES AT A GLANCE Super concentrated 15x strength formula Useful for rapidly re-establishing nitrification bacteria in case of an emergency Usually cycles in 5-7 days Ideal in aquaria with high population densities and when adding new fish Best used post-cleaning of rocks and surfaces or after use of medication Prevents “New Tank Syndrome” Supplied in a proprietary base for maximum longevity Formulated utilizing extensive data compiled by microbiologists AMERICAN-MADE EXCELLENCE Trust in the quality and excellence of Brightwell Aquatics, an industry-leading brand committed to providing innovative and scientifically backed aquatic care products. Made in the USA, we consistently strive to deliver advanced superior quality solutions to elevate the vibrancy and health of your aquarium. ## Features - HIGH-POWER TANK STARTER – MicroBacter Start XLF is a powerful 15x concentrated blend designed to kickstart biological filtration in new tanks and existing freshwater aquariums. It enhances water quality, providing a flourishing underwater environment with live, non-pathogenic microbes - RAPID WATER CYCLING – Optimize your aquarium’s health swiftly with this shrimp safe fast-acting solution. Quickly accelerate the tank's beneficial nitrifying bacteria population for balance and stability in just 5-7 days. It’s the ideal solution when time is crucial - FOR HIGH-DENSITY AQUARIUMS – A scientifically blended formula that caters to crowded tanks and effectively reduces ammonia and nitrite levels, all while supporting population density. Supplied in a proprietary base, providing maximum longevity in shipping and in your aquatic ecosystem. It has a shelf life of over a year at room temperature. - ADVANCED TANK RECOVERY – Perfect for all levels of aquarium enthusiasts and compatible with various sand and rock substrates. Best used post-cleaning or after use of medications. This ammonia remover accelerates the re-establishment rate of fish tank bacteria, ensuring your fish thrive - AMERICAN-MADE EXCELLENCE – Brightwell Aquatics is an industry-leading brand committed to providing innovative and scientifically backed aquatic care products. Made in the USA, we consistently deliver advanced superior quality solutions to elevate the vibrancy and health of your aquarium ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B086Z6VTJW | | ASIN | B086Z6VTJW | | Allergen Information | Sulphites Free | | Best Sellers Rank | #42,293 in Pet Supplies ( See Top 100 in Pet Supplies ) #371 in Aquarium Water Treatments | | Brand Name | Brightwell Aquatics | | Customer Reviews | 4.6 4.6 out of 5 stars (1,407) | | Date First Available | April 10, 2020 | | Included Components | MicroBacterStart XLF | | Item Form | Liquid | | Item Type Name | Water Conditioner | | Item Weight | 4.97 ounces | | Item model number | BACSTARTXLF125 | | Liquid Volume | 125 ml | | Manufacturer | Brightwell Aquatics | | Manufacturer | Brightwell Aquatics | | Manufacturer Part Number | BACSTARTXLF125 | | Model Number | BACSTARTXLF125 | | Number of Items | 1 | | Package Dimensions | 4.8 x 1.54 x 1.46 inches; 4.97 ounces | | Pet Type | Fish | | Target Species | Fish | | UPC | 810086019595 | | Unit Count | 1 Count | ## Product Details - **Brand:** Brightwell Aquatics - **Item Form:** Liquid - **Item Weight:** 4.97 ounces - **Liquid Volume:** 125 ml - **Unit Count:** 1 Count ## Images ![MicroBacter Start XLF Freshwater Tank Starter, 125 ml - Image 1](https://m.media-amazon.com/images/I/611mZuJRXKL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: I had a major nitrite and nitrate spike. crazy high. my ph was super low, probably the only reason my beta survived. how long will this take to work?** A: I'm sorry but the person who said it would cycle in 2 days is absolutely wrong. Scientifically that cannot and will not happen. If you educate yourself on the nitogen cycle you will see why. You are right about your ph being super low and your beta surving because the lower your ph is; less toxic form or ammonium will be present than the more toxic ammonia. **Q: How long does the water stay cloudy after use?** A: Once the bacteria begins to bloom , the cloudiness could last a couple weeks . API accu-clear will clear up the cloudiness without affecting the cycle. **Q: I have nitrogen spikes in my aquarium sometimes after my water changes. Would using this in replacement water be a reasonable preventative or waste $?** A: This product is hardly a waste of money , I use it in replacement water after every monthly gravel vac to prevent (new water syndrome). My fish seem to instantly detect its presense quicker than Seachems Stability. Nitrogen prevention , however isn't exactly what this product is for. Yes true , beneficial bacteria products help convert ammonia into nitrite , and then nitrite into harmless nitrate. But the cycle time in which this occurs takes many weeks of patience. If your filter is already cycled , it still takes many days to go through the conversion process. Therefore during a nitrogen spike , you would be better off purchasing Seachems Safe (and be prepared for the white powder substance to smell like sulfur) , this is normal and the answer to your nitrogen problem. **Q: When it says remove "filter floss" what exactly does it mean?** A: That means take the filter cartridges out of your filter ........ In other words run it without the carbonated screens that you put in. ## Frequently Bought Together - Brightwell Aquatics MicroBacter Start XLF - Concentrated Freshwater Nitrifying Bacteria - Quick Start Fish Tank Starter, Lift Microbe Levels & Water Filtering - Aquarium Water Treatments, 4.22 fl oz - API TAP WATER CONDITIONER Aquarium Water Conditioner 16-Ounce Bottle - 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.com.om/products/209775039-microbacter-start-xlf-freshwater-tank-starter-125-ml](https://www.desertcart.com.om/products/209775039-microbacter-start-xlf-freshwater-tank-starter-125-ml) --- *Product available on Desertcart Oman* *Store origin: OM* *Last updated: 2026-09-18*