--- product_id: 709793491 title: "Brightwell Aquatics MicroBacter7 Biological Filter Bioculture Aid, 250 ml" brand: "brightwell aquatics" price: "¥4672" currency: JPY in_stock: true reviews_count: 13 category: "Brightwell Aquatics" url: https://www.desertcart.jp/products/709793491-brightwell-aquatics-microbacter7-biological-filter-bioculture-aid-250-ml store_origin: JP region: Japan --- # Rapid water clarity boost 7-strain microbial blend Dual aerobic & anaerobic action Brightwell Aquatics MicroBacter7 Biological Filter Bioculture Aid, 250 ml **Brand:** brightwell aquatics **Price:** ¥4672 **Availability:** ✅ In Stock ## Summary > 🧬 Elevate your aquarium’s ecosystem with microbial precision! ## Quick Answers - **What is this?** Brightwell Aquatics MicroBacter7 Biological Filter Bioculture Aid, 250 ml by brightwell aquatics - **How much does it cost?** ¥4672 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/709793491-brightwell-aquatics-microbacter7-biological-filter-bioculture-aid-250-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 - • **Microbial Mastery:** Harnesses a complex 7-strain bacteria and enzyme system for superior filtration and water conditioning. - • **Dual Environment Power:** Optimized for both saltwater and freshwater tanks, ensuring versatile aquatic ecosystem support. - • **American-Made Assurance:** Scientifically backed, veterinarian recommended, and proudly crafted in the USA for trusted quality. - • **Nutrient Balance Booster:** Enhances nitrification and denitrification to stabilize and remineralize your aquarium’s nutrient cycle. - • **Aquarium Clarity Catalyst:** Rapidly reduces ammonia, nitrite, nitrate, phosphate, and hydrogen sulfide for crystal-clear water. ## Overview Brightwell Aquatics MicroBacter7 is an advanced liquid bioculture featuring a proprietary blend of aerobic and anaerobic microbes plus natural enzymes. Designed for both freshwater and saltwater aquariums, it accelerates biological filtration by enhancing nitrification, denitrification, and organic waste breakdown. This results in rapid reduction of harmful compounds like ammonia, nitrite, nitrate, phosphate, and hydrogen sulfide, promoting crystal-clear water and a healthier aquatic environment. Trusted by veterinarians and made in the USA, MicroBacter7 is ideal for stabilizing established tanks and maintaining optimal water quality. ## 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 bacteria 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 Bacteria 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. Review: Works as intended - 0 nitrates - This stuff works as intended. I will be honest, I thought this was a type of bacteria to boost bacteria biodiversity, and technically it is but it is mostly an enzyme to tackle nitrates in your tank. Ever since I've dosed this my tank has stayed at 0-.1 nitrates which can be good at times. But some nitrate can help foster coral growth. And ever since I've dosed this, my corals haven't grown as fast as they used to. So I would say this product is great for when your tank has been established and you want to "freeze" your tanks growth. But for new tanks I would stay away for awhile and instead buy brightwell clean which has the bacteria to broaden your bacteria biodiversity. The enzymes in this product eat at the nitrates and turn it into nitrogen gas which completely eliminates nitrates so if you want some nitrates, use this product with caution. But if i had done my research and used this product as intended, it did exactly what it was meant for. Review: Helps to stabilize newer aquariums quick! - Been struggling to get my nitrite values normalized using API Quick Start. It’s Day 3 of using MicroBacter7, and my values are in a safe range. Water is clear and my fish are happy. Great product, will continue to use this from now on! Highly recommend. ## 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 to prevent contamination - 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 | B003WRGA5C | | Allergen Information | Sulphites Free | | Best Sellers Rank | #5,283 in Pet Supplies ( See Top 100 in Pet Supplies ) #77 in Aquarium Filter Accessories | | Brand | Brightwell Aquatics | | Brand Name | Brightwell Aquatics | | Customer Reviews | 4.7 out of 5 stars 3,460 Reviews | | Global Trade Identification Number | 00810086012190 | | Included Components | MicroBacter7 | | Item Form | Liquid | | Item Type Name | Aquarium Bacteria | | Item Weight | 0.6 Pounds | | Liquid Volume | 250 Milliliters | | Manufacturer | TopDawg Pet Supply | | Manufacturer Part Number | BAC250 | | Model Number | BAC250 | | Target Species | Fish | | UPC | 810086012190 | | Unit Count | 1 Count | ## Product Details - **Brand:** Brightwell Aquatics - **Item Form:** Liquid - **Item Weight:** 0.6 Pounds - **Liquid Volume:** 250 Milliliters - **Manufacturer:** TopDawg Pet Supply ## Images ![Brightwell Aquatics MicroBacter7 Biological Filter Bioculture Aid, 250 ml - Image 1](https://m.media-amazon.com/images/I/81RUSsPv0hL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works as intended - 0 nitrates *by T***R on January 3, 2026* This stuff works as intended. I will be honest, I thought this was a type of bacteria to boost bacteria biodiversity, and technically it is but it is mostly an enzyme to tackle nitrates in your tank. Ever since I've dosed this my tank has stayed at 0-.1 nitrates which can be good at times. But some nitrate can help foster coral growth. And ever since I've dosed this, my corals haven't grown as fast as they used to. So I would say this product is great for when your tank has been established and you want to "freeze" your tanks growth. But for new tanks I would stay away for awhile and instead buy brightwell clean which has the bacteria to broaden your bacteria biodiversity. The enzymes in this product eat at the nitrates and turn it into nitrogen gas which completely eliminates nitrates so if you want some nitrates, use this product with caution. But if i had done my research and used this product as intended, it did exactly what it was meant for. ### ⭐⭐⭐⭐⭐ Helps to stabilize newer aquariums quick! *by C***I on December 12, 2025* Been struggling to get my nitrite values normalized using API Quick Start. It’s Day 3 of using MicroBacter7, and my values are in a safe range. Water is clear and my fish are happy. Great product, will continue to use this from now on! Highly recommend. ### ⭐⭐⭐⭐⭐ great for shrimp tanks *by A***N on January 28, 2026* This product got my shrimp tanks cycled in two weeks. I'm now two months into shrimpkeeping, and my shrimps still prefer to eat the biofilm on the hardscape over hikari algae wafers or even bacter ae. ## 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, 8.45 fl oz - Brightwell Aquatics MicroBacter Clean - Microbial Culture & Enzyme Blend Fish Tank Cleaner - Cleans Live Rock Surfaces for Saltwater Fish Habitats - Aquarium Water Treatments, 8.45 fl oz - Chemi-Clean - 2 g --- ## 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.jp/products/709793491-brightwell-aquatics-microbacter7-biological-filter-bioculture-aid-250-ml](https://www.desertcart.jp/products/709793491-brightwell-aquatics-microbacter7-biological-filter-bioculture-aid-250-ml) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-06-20*