---
product_id: 286954563
title: "Brightwell Aquatics MicroBacter7 Complete Bioculture for Fish Tank or Aquarium - Populates Biological Filter Media for Saltwater and Freshwater Fish - Aquarium Water Treatments, 33.8 fl oz"
brand: "brightwell aquatics"
price: "A$29"
currency: AUD
in_stock: false
reviews_count: 5
url: https://www.desertcart.com.au/products/286954563-brightwell-aquatics-microbacter7-complete-bioculture-for-fish-tank-or-aquarium
store_origin: AU
region: Australia
---

# Supports fresh & saltwater tanks 33.8 fl oz liquid formula 7+ aerobic & anaerobic microbes Brightwell Aquatics MicroBacter7 Complete Bioculture for Fish Tank or Aquarium - Populates Biological Filter Media for Saltwater and Freshwater Fish - Aquarium Water Treatments, 33.8 fl oz

**Brand:** brightwell aquatics
**Price:** A$29
**Availability:** ❌ Out of 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, 33.8 fl oz by brightwell aquatics
- **How much does it cost?** A$29 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/286954563-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

- • **Rapid Clarity Boost:** Noticeable water clarity improvement within 30 minutes of dosing—because your aquarium deserves to shine now.
- • **Microbial Powerhouse:** Advanced blend of aerobic & anaerobic bacteria accelerates nitrification & denitrification for crystal-clear water.
- • **Dual Ecosystem Support:** Optimized for both freshwater and saltwater aquariums, ensuring versatile and reliable biological filtration.
- • **Nutrient Control Mastery:** Effectively reduces ammonia, nitrite, nitrate, phosphate, and hydrogen sulfide to maintain a pristine aquatic environment.
- • **Trusted American Quality:** Scientifically backed, veterinarian recommended, and proudly made in the USA for consistent, premium performance.

## Overview

Brightwell Aquatics MicroBacter7 is a 33.8 fl oz advanced microbial bioculture designed to establish and maintain biological filtration in both freshwater and saltwater aquariums. Featuring a complex system of aerobic and anaerobic bacteria plus natural enzymes, it accelerates nutrient cycling by enhancing nitrification and denitrification while reducing harmful compounds like ammonia and phosphate. Veterinarian tested and made in the USA, this formula rapidly improves water clarity and supports a healthy, balanced aquatic environment.

## 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 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 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 contaminate the product. Best results may be obtained by adding mixture to external biological filtration system (if applicable). Do not add to pump intake port(s). For best results, use within 1-year of purchase date. Grossly overdosing MicrōBacter7 will not significantly increase the effectiveness of the product, nor the rate at which it enacts changes in aquaria. The following recommendations are based upon extensive testing and will produce the best results in most aquaria. Medium- to High-nutrient Systems, or to seed Biological Filtration in new aquaria: To effectively decrease the concentration of available nutrients and waste material in all marine and freshwater aquaria, add 5 ml (1 capful) per 25 US-gallons (94.6 L) [≈4 drops per gallon (3.8 L)] of aquarium water daily for the first two weeks of use; the impact that MicrōBacter7 has on an aquarium is most evident within this period. Turn protein skimming and UV-sterilization off for a period of 4 hours following addition to aquaria. A noticeable difference in water clarity is typically apparent within 30-minutes of dosing. Follow same instructions for new aquarium start-up. Thereafter, switch to “low-nutrient” dosage (below). Stable, Low-nutrient Systems: To maintain a low concentration of available nutrients in all marine and freshwater aquaria, 5 ml (1 capful) of MicrōBacter7 per 50 US-gallons (189.3 L) [≈2 drops per gallon (3.8 L)] of aquarium water no more than once each week; alternately, add 1 drop per 50 US-gallons daily (or 1 drop per 25 US-gallons every other day). Turn protein skimming and UV-sterilization off for a period of 4 hours following addition to aquaria. Dosage may be adjusted according to perceived benefit to aquarium, however it is recommended that the dosage not exceed 1 drop per 10 US-gallons per day. With time, hobbyists may determine that decreasing the dosage and/or dosing frequency by up to 50% sufficiently maintains a low-nutrient environment. During changes in biological filtration or when increasing the aquarium bioload, dose 1 drop per 25 US-gallons daily for one week, then resume “low-nutrient” dosage. Caution: Keep out of reach of children. Not for human consumption.

Review: Good bacteria supplement !!!
Review: Good bacteria liquid

## Features

- ADVANCED MICROBIAL FORMULA – MicroBacter7 has a complex system of non-pathogenic aerobic and anaerobic microbes, and natural enzymes. This unique bacteria water conditioner 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 educing concentrations of organic carbon, ammonia, nitrite, nitrate, phosphate and hydrogen sulfide production in all marine and freshwater ecosystems
- 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 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 products. Made in the USA, we deliver superior quality solutions to elevate the vibrancy and health of your aquarium

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07858QDH7 |
| Allergen Information | Sulphites Free |
| Best Sellers Rank | 184,967 in Pet Supplies ( See Top 100 in Pet Supplies ) 1,573 in Aquarium Water Treatments |
| Brand | Brightwell Aquatics |
| Brand Name | Brightwell Aquatics |
| Customer Reviews | 4.6 out of 5 stars 355 Reviews |
| Global Trade Identification Number | 00810086017775 |
| Included Components | MicroBacter7 |
| Item Form | Liquid |
| Item Type Name | Aquarium Bacteria |
| Item Weight | 2.48 Pounds |
| Item form | Liquid |
| Item weight | 2.48 Pounds |
| Liquid Volume | 1 Litres |
| Liquid volume | 1 Litres |
| Manufacturer | Brightwell Aquatics |
| Target Species | Fish |
| UPC | 810086017775 |
| Unit Count | 1 count |

## Product Details

- **Brand:** Brightwell Aquatics
- **Item form:** Liquid
- **Item weight:** 1.13 kg
- **Liquid volume:** 1 Litres
- **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, 33.8 fl oz - Image 1](https://m.media-amazon.com/images/I/61re95B6zKL.jpg)
![Brightwell Aquatics MicroBacter7 Complete Bioculture for Fish Tank or Aquarium - Populates Biological Filter Media for Saltwater and Freshwater Fish - Aquarium Water Treatments, 33.8 fl oz - Image 2](https://m.media-amazon.com/images/I/71wfT8SjYbL.jpg)
![Brightwell Aquatics MicroBacter7 Complete Bioculture for Fish Tank or Aquarium - Populates Biological Filter Media for Saltwater and Freshwater Fish - Aquarium Water Treatments, 33.8 fl oz - Image 3](https://m.media-amazon.com/images/I/81c+L2j-tqL.jpg)
![Brightwell Aquatics MicroBacter7 Complete Bioculture for Fish Tank or Aquarium - Populates Biological Filter Media for Saltwater and Freshwater Fish - Aquarium Water Treatments, 33.8 fl oz - Image 4](https://m.media-amazon.com/images/I/81xNn92BXwL.jpg)
![Brightwell Aquatics MicroBacter7 Complete Bioculture for Fish Tank or Aquarium - Populates Biological Filter Media for Saltwater and Freshwater Fish - Aquarium Water Treatments, 33.8 fl oz - Image 5](https://m.media-amazon.com/images/I/81yXHNMrDwL.jpg)

## Available Options

This product comes in different **Size** 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

### ⭐⭐⭐⭐⭐ Good bacteria supplement !!!
*by A***J on 1 September 2017*



### ⭐⭐⭐⭐⭐ Good bacteria liquid
*by D***. on 7 January 2024*



### ⭐⭐⭐⭐⭐ Excellent product
*by V***L on 6 November 2023*



## 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, 135.25 fl oz
- Brightwell Aquatics MicroBacter Clean - Microbial Culture & Enzyme Blend Fish Tank Cleaner - Cleans Live Rock Surfaces for Saltwater Fish Habitats - Aquarium Water Treatments, 135.25 fl oz

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-16*