---
product_id: 17725668
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: "S$151"
currency: SGD
in_stock: true
reviews_count: 13
category: "Brightwell Aquatics"
url: https://www.desertcart.sg/products/17725668-brightwell-aquatics-microbacter7-complete-bioculture-for-fish-tank-or-aquarium
store_origin: SG
region: Singapore
---

# 67.6 fl oz liquid formula 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:** S$151
**Availability:** ✅ In Stock

## Summary

> 🧬 Elevate your aquarium’s ecosystem with science-backed clarity!

## 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?** S$151 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/17725668-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

- • **Waste Warrior:** Accelerates organic waste breakdown for pristine water quality
- • **Microbial Mastery:** Advanced aerobic & anaerobic bacteria for rapid filtration boost
- • **Crystal Clear Clarity:** Effectively reduces ammonia, nitrite, nitrate & phosphate levels
- • **Dual Ecosystem Support:** Optimized for both freshwater & saltwater aquariums
- • **Trusted American Craft:** Scientifically backed, veterinarian recommended, USA-made excellence

## Overview

Brightwell Aquatics MicroBacter7 is a 67.6 fl oz advanced bioculture liquid designed to establish and enhance biological filtration in both freshwater and saltwater aquariums. Featuring a proprietary blend of aerobic and anaerobic microbes plus natural enzymes, it accelerates nitrification, denitrification, and organic waste degradation, rapidly reducing harmful compounds like ammonia, nitrite, nitrate, phosphate, and hydrogen sulfide. Made in the USA and veterinarian recommended, it ensures superior water clarity and a healthier aquatic environment.

## 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.

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.
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.

## 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 |
| ASIN  | B00412Z28S |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #4,326 in Pet Supplies ( See Top 100 in Pet Supplies ) #45 in Aquarium Water Treatments |
| Brand Name | Brightwell Aquatics |
| Country of Origin | United States |
| Customer Reviews | 4.7 4.7 out of 5 stars (3,379) |
| Date First Available | October 31, 2008 |
| Date First Available  | October 31, 2008 |
| Directions | Shake product well before using. Mix appropriate volume of MicrōBacter7 (see below) with 250-ml (~8 fl. oz.) of aquarium water in a clean container prior to addition to aquarium. If using a pipette to dispense MicrōBacter7 below water level of container or aquarium, be sure to thoroughly clean pipette with fresh water prior to placing tube back into MicrōBacter7 bottle; failure to do so will conta… |
| Included Components | MicroBacter7 |
| Item Dimensions LxWxH | 2.75 x 6.25 x 8 inches |
| Item Package Dimensions L x W x H | 8.82 x 6.22 x 2.87 inches |
| Item Weight | 1 Pounds |
| Item model number | BAC2L |
| Item model number  | BAC2L |
| Manufacturer | Brightwell Aquatics |
| Manufacturer  | Brightwell Aquatics |
| Material | liquid |
| Model Name | MicroBacter7 |
| Number of Items | 1 |
| Product Dimensions  | 2.75 x 6.25 x 8 inches; 1 Pounds |
| Size | 2L |
| Specific Uses for Product | fish |
| Style | Conditioner |
| Target Audience Keyword | fish |

## Product Details

- **Brand:** Brightwell Aquatics
- **Item Form:** Liquid
- **Item Weight:** 1 Pounds
- **Liquid Volume:** 2 Liters
- **Manufacturer:** Brightwell Aquatics

## 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)

## Available Options

This product comes in different **Size, Style** options.

## 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

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ good
*by J***S on December 8, 2025*

as far as I know it works great , the fish are still alive as well as the plants in my ten-gal tank

## 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

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-18*