---
product_id: 201406281
title: "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"
brand: "brightwell aquatics"
price: "C$15024"
currency: NIO
in_stock: true
reviews_count: 8
url: https://www.desertcart.ni/products/201406281-brightwell-aquatics-microbacter7-complete-bioculture-for-fish-tank-or-aquarium
store_origin: NI
region: Nicaragua
---

# 4L Volume Advanced Formula Made in USA 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

**Brand:** brightwell aquatics
**Price:** C$15024
**Availability:** ✅ In Stock

## Summary

> 🌊 Dive into a Cleaner Aquarium Experience!

## 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, 135.25 fl oz by brightwell aquatics
- **How much does it cost?** C$15024 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/201406281-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

- • **Bacteria Powerhouse:** Harness the power of non-pathogenic microbes for optimal water quality.
- • **Transform Your Aquarium:** Elevate your aquatic ecosystem with our advanced microbial formula!
- • **American-Made Excellence:** Trust in a brand committed to innovative aquatic care solutions.
- • **Nutrient Remineralization:** Enhance nitrification and denitrification for a thriving aquatic environment.
- • **Cleaner Water, Happier Fish:** Rapidly reduce harmful substances for a healthier habitat.

## Overview

Brightwell Aquatics MicroBacter7 Complete Bioculture is a scientifically formulated liquid solution designed to enhance the biological filtration of both saltwater and freshwater aquariums. With a volume of 135.25 fl oz (4 liters) and a weight of 7.7 pounds, this product introduces beneficial bacteria to improve water quality by reducing harmful compounds, ensuring a vibrant and healthy aquatic environment. Proudly made in the USA, it reflects a commitment to excellence in aquatic care.

## 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.

## 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 issues
- 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 |
|---------------|-------|
| Item Weight | 7.7 Pounds |
| Liquid Volume | 4 Liters |
| Allergen Information | Sulphites Free |
| Target Species | Fish |
| Item Form | Liquid |

## Product Details

- **Brand:** Brightwell Aquatics
- **Liquid Volume:** 4 Liters
- **Item Weight:** 7.65 Pounds
- **Item Form:** Liquid
- **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, 135.25 fl oz - Image 1](https://m.media-amazon.com/images/I/616HpgJ+oYL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/91sBkPnabAL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/8144UrDSnuL.jpg)
![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 - Image 4](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, 135.25 fl oz - Image 5](https://m.media-amazon.com/images/I/81c+L2j-tqL.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

### ⭐⭐⭐⭐⭐ wonderful product
*by K***1 on July 11, 2025*

I've had a 40 gallon frish water fish for over 25 years; constantly stuggling with green algae, dirty plants and algae invested items in the tank.Thi product eliminated the green algae; don't have to clean the plants, ect. every monthat the monthly tank cleaning. tank is crystal clear all the ime. wonderful product.

### ⭐⭐⭐⭐⭐ For more than just the cycle
*by P***S on February 25, 2025*

Amazing product, a must have for any reefer/aquarist. Works for small issues and really helps to keep the tanks bacterial bio diversity healthy and productive.

### ⭐⭐⭐⭐⭐ Consistent and reliable, just works.
*by D***1 on July 6, 2025*

I purchased this several years ago in order to jumpstart a tank after getting back into the hobby. I've tried several other formulations and this gets my tank seeded quicker than the rest for whatever reason. I usually do nano tanks with plants, fish-in cycle, no issues (several minor water changes during first couple of weeks). Honorable mention to the Seachem product but Brightwell's bacteria works for me every time.

## 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 Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-07*