--- product_id: 57104239 title: "Brightwell Aquatics MicroBacter7 Complete Bioculture for Fish Tank or Aquarium - Populates Biological Filter Media for Saltwater and Freshwater Fish - Aquarium Water Treatments, 67.6 fl oz" brand: "brightwell aquatics" price: "$249.45" currency: USD in_stock: true reviews_count: 5 category: "Brightwell Aquatics" url: https://www.desertcart.us/products/57104239-brightwell-aquatics-microbacter7-complete-bioculture-for-fish-tank-or-aquarium store_origin: US region: United States of America --- # 2L liquid volume 7-strain microbial blend Made in USA quality Brightwell Aquatics MicroBacter7 Complete Bioculture for Fish Tank or Aquarium - Populates Biological Filter Media for Saltwater and Freshwater Fish - Aquarium Water Treatments, 67.6 fl oz **Brand:** brightwell aquatics **Price:** $249.45 **Availability:** ✅ In Stock ## Summary > 🦠 Elevate your aquarium’s ecosystem with microbial magic! ## Quick Answers - **What is this?** Brightwell Aquatics MicroBacter7 Complete Bioculture for Fish Tank or Aquarium - Populates Biological Filter Media for Saltwater and Freshwater Fish - Aquarium Water Treatments, 67.6 fl oz by brightwell aquatics - **How much does it cost?** $249.45 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/57104239-brightwell-aquatics-microbacter7-complete-bioculture-for-fish-tank-or-aquarium) ## 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 - • **Nutrient Mastery:** Accelerates nitrification & denitrification, slashing ammonia, nitrite & phosphate levels. - • **Microbial Powerhouse:** Advanced aerobic & anaerobic bacteria boost filtration and water clarity fast. - • **Dual Ecosystem Support:** Optimized for both saltwater and freshwater tanks—versatility that fits your lifestyle. - • **Cleaner, Healthier Water:** Rapidly reduces organic waste and hydrogen sulfide for a vibrant aquatic environment. - • **Trusted American Craftsmanship:** Scientifically backed, vet-recommended formula made with pride in the USA. ## Overview Brightwell Aquatics MicroBacter7 is a 2-liter advanced bioculture liquid designed to establish and enhance biological filtration in both freshwater and saltwater aquariums. Featuring a complex blend of aerobic and anaerobic microbes plus natural enzymes, it accelerates nutrient cycling by reducing ammonia, nitrite, nitrate, phosphate, and hydrogen sulfide, resulting in clearer, healthier water. Made in the USA and vet-recommended, it’s the go-to solution for aquarium enthusiasts seeking superior water quality and ecosystem balance. ## Description Product Description Brightwell Aquatics MicroBacter7 Complete Bioculture for Fish Tank or Aquarium Experience a new level of aquatic care with Brightwell Aquatics MicroBacter7 Complete Bioculture for Fish Tank or Aquarium – the ultimate solution for achieving a balanced and thriving aquatic environment. This advanced microbial formula is rigorously tested and recommended by veterinarian pathologists, establishes biological filtration in new aquarium setups and accelerates the rates of nitrification, denitrification, and organic waste degradation in marine and freshwater aquaria. The supplement offers unparalleled reliability. While rapidly reducing hydrogen sulfide production to increase dissolved oxygen levels, it also decreases levels of organic carbon, ammonia, nitrite, nitrate, and phosphate, establishing a cleaner substrate. As a result, it inhibits the growth of undesirables and improves the overall water clarity of your aquarium. If you're setting up a new aquarium or fish tank, the MicroBacter7 Water Conditioner is your go to solution. Its versatility extends to both freshwater and saltwater aquariums, providing powerful support for a diverse range of aquatic environments. FEATURES AT A GLANCE Advanced Microbial Formula Comprehensive Nutrient Remineralization Targeted Nutrient Reduction Enhanced Water Quality Prevents Growth of undesirable substances Reduced Hydrogen Sulfide Production Veterinarian Pathologist Tested and Recommended 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. Directions Shake well before use. Mix MicroBacter7 with 250ml aquarium water in a clean container before adding it to the aquarium. If using a dropper below the water level, clean it thoroughly with fresh water before putting it back into the MicroBacter7 bottle. Review: Good bacteria supplement !!! - I have used it for bring my nitrifying bacteria population and it did what I have expected. I strongly recommend it and will keep on buying this product. Review: Good bacteria liquid - Bottle is filled to the brink but difficult to pour and kinda easily spills. Price is reasonable and bacteria is good to maintain my tank. ## Features - ADVANCED MICROBIAL FORMULA – MicroBacter7 Complete Bioculture features a complex system of non-pathogenic aerobic and anaerobic microbes, along with natural enzymes. This unique bacteria water conditioner formulation is specifically designed as an aquarium water clarifier and filtration system - NUTRIENT REMINERALIZATION – The MicroBacter7 formula introduces aquarium bacteria to enhance nitrification, denitrification, and organic waste degradation in both marine and freshwater aquaria and limits the availability of pre-existing phosphate - ENHANCED WATER QUALITY – The bacteria supplement promotes a clean and healthy environment by rapidly reducing concentrations of organic carbon, ammonia, nitrite, nitrate, phosphate and hydrogen sulfide production in all marine and freshwater ecosystems, leading to improved water quality - DIRECTIONS – Shake well before use. Mix MicroBacter7 with 250 ml of aquarium water in a clean container before adding it to the aquarium. If using a pipette below water level, clean it thoroughly with fresh water before placing it back into the MicroBacter7 bottle. - 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 | B00412Z28S | | Allergen Information | Sulphites Free | | Best Sellers Rank | 81,845 in Pet Supplies ( See Top 100 in Pet Supplies ) 821 in Aquarium Water Treatments | | Brand | Brightwell Aquatics | | Brand Name | Brightwell Aquatics | | Country Of Origin | United Kingdom | | Customer Reviews | 4.7 out of 5 stars 358 Reviews | | Global Trade Identification Number | 00810086012213 | | Included Components | MicroBacter7 | | Item Form | Liquid | | Item Type Name | Aquarium Bacteria | | Item Weight | 1 Pounds | | Item form | Liquid | | Item weight | 1 Pounds | | Liquid Volume | 2 Litres | | Liquid volume | 2 Litres | | Manufacturer | TopDawg Pet Supply | | Manufacturer Part Number | BAC2L | | Model Number | BAC2L | | Pet Type | Fish | | Target Species | Fish | | UPC | 810086012213 | | Unit Count | 1 count | | Unit count | 1 count | ## Product Details - **Brand:** Brightwell Aquatics - **Item form:** Liquid - **Item weight:** 454 g - **Liquid volume:** 2 Litres - **Manufacturer:** TopDawg Pet Supply ## Images ![Brightwell Aquatics MicroBacter7 Complete Bioculture for Fish Tank or Aquarium - Populates Biological Filter Media for Saltwater and Freshwater Fish - Aquarium Water Treatments, 67.6 fl oz - Image 1](https://m.media-amazon.com/images/I/51cT9+6KVSL.jpg) ## Questions & Answers **Q: Can we add this to an existing reef with slightly elevated ammonia?** A: If by existing you mean live stock in it? Yes, and if you mean no stock but ammonia, yes again. You might be better off doing a water change if you have life in tank though. If you dose this you will have to monitor nitrite and nitrate cycles. **Q: Im new...will this kill off my invert food sources or hurt them in any way?** A: It will not kill your invert food source. It’s bacteria that’s beneficial to your aquarium **Q: Noob question how much of this do I use on a 32 gallon biocube? It’s a new tank I can’t find any measuring cups for ML anywhere n my town** A: Once your tank has been fed regularly for a few days either with out without fish to start the bacterial cycle, add half during the first week and the other half during the 2nd. Add a small amount after water changes is also a good idea for upkeep. Buy 2 bottles. **Q: how long did it take for this product to bring down nitrite levels?** A: I wouldn't use this product as a means of nitrite reduction. Live rock will do a much better job of that. I use this product as a means of adding biodiversity to my tank. It did nothing for nitrate levels. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good bacteria supplement !!! *by A***J on 1 September 2017* I have used it for bring my nitrifying bacteria population and it did what I have expected. I strongly recommend it and will keep on buying this product. ### ⭐⭐⭐⭐⭐ Good bacteria liquid *by D***. on 7 January 2024* Bottle is filled to the brink but difficult to pour and kinda easily spills. Price is reasonable and bacteria is good to maintain my tank. ### ⭐⭐⭐⭐⭐ Excellent product *by V***L on 6 November 2023* I was facing diatom issue for months, I try many things to reduce diatom, at last some one told me try microbacter7, my tank 120 gallon reef tank mixed. The result was not quick but after 2 week unbelievable tanks looks so clean sand bed, rock, water it’s a miracle, inside daily 20 ml. From last month I am dosing 20 ml every day. ## Frequently Bought Together - Brightwell Aquatics MicroBacter7 Complete Bioculture for Fish Tank or Aquarium - Populates Biological Filter Media for Saltwater and Freshwater Fish - Aquarium Water Treatments, 67.6 fl oz - Brightwell Aquatics MicroBacter Clean - Microbial Culture & Enzyme Blend Fish Tank Cleaner - Cleans Live Rock Surfaces for Saltwater Fish Habitats - Aquarium Water Treatments, 67.6 fl oz --- ## 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.us/products/57104239-brightwell-aquatics-microbacter7-complete-bioculture-for-fish-tank-or-aquarium](https://www.desertcart.us/products/57104239-brightwell-aquatics-microbacter7-complete-bioculture-for-fish-tank-or-aquarium) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-03*