---
product_id: 280738024
title: "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"
brand: "brightwell aquatics"
price: "€ 42.06"
currency: EUR
in_stock: true
reviews_count: 9
category: "Brightwell Aquatics"
url: https://www.desertcart.pt/products/280738024-brightwell-aquatics-microbacter7-complete-bioculture-for-fish-tank-or-aquarium
store_origin: PT
region: Portugal
---

# works in fresh & saltwater 250 ml potent bioculture populates biological filter media 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

**Brand:** brightwell aquatics
**Price:** € 42.06
**Availability:** ✅ In Stock

## Summary

> 🌟 Transform your tank, join the clarity revolution!

## 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, 8.45 fl oz by brightwell aquatics
- **How much does it cost?** € 42.06 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/280738024-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

- • **Trusted & Proven:** Highly rated with 4.7 stars from over 3,300 aquarists—join the community that’s redefining aquarium health.
- • **Consistent Clarity:** Daily dosing transforms your tank over weeks, eliminating diatoms and keeping sand beds pristine.
- • **Filter Media Revival:** Revitalizes and populates biological filter media to maintain crystal-clear water effortlessly.
- • **Microbial Powerhouse:** Boost your tank’s natural filtration with 250 ml of concentrated beneficial bacteria.
- • **Dual Environment Mastery:** Perfectly formulated for both freshwater and saltwater aquariums—one solution for all your aquatic friends.

## Overview

Brightwell Aquatics MicroBacter7 is a 250 ml liquid bioculture designed to enhance biological filtration in both freshwater and saltwater aquariums. It populates filter media with beneficial bacteria, helping to eliminate algae and diatom issues while maintaining a clean, healthy aquatic environment. Trusted by thousands of aquarists, it supports consistent water clarity and tank vitality with regular dosing.

## Description

From the manufacturer

Review: Excellent product - 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.
Review: Is very good product 👌 - Recommended, I used this product each month one time. Good price.

## Features

- Brightwell Microbacter-7 Bioculture Fresh & Marine 8.5 oz. 250 ml.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003WRGA5C |
| Allergen Information | Sulphites Free |
| Best Sellers Rank | #11,882 in Pet Supplies ( See Top 100 in Pet Supplies ) #93 in Fish Medication & Health Supplies |
| Brand | Brightwell Aquatics |
| Brand Name | Brightwell Aquatics |
| Customer Reviews | 4.7 out of 5 stars 3,355 Reviews |
| Global Trade Identification Number | 00810086012190 |
| Included Components | MicroBacter7 |
| Item Form | Liquid |
| Item Type Name | Aquarium Bacteria |
| Item Weight | 0.6 Pounds |
| Item form | Liquid |
| Item weight | 0.6 Pounds |
| Liquid Volume | 250 Milliliters |
| Liquid volume | 250 Milliliters |
| Manufacturer | Brightwell Aquatics |
| Manufacturer Part Number | BAC250 |
| Model Number | BAC250 |
| Target Species | Fish |
| UPC | 810086012190 |
| Unit Count | 1 Count |
| Unit count | 1 Count |

## Product Details

- **Brand:** Brightwell Aquatics
- **Item form:** Liquid
- **Item weight:** 272 g
- **Liquid volume:** 250 Milliliters
- **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, 8.45 fl oz - Image 1](https://m.media-amazon.com/images/I/81RUSsPv0hL.jpg)
![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 - 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, 8.45 fl oz - Image 3](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, 8.45 fl oz - Image 4](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, 8.45 fl oz - Image 5](https://m.media-amazon.com/images/I/81xNn92BXwL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Is very good product 👌
*by I***A on 12 February 2024*

Recommended, I used this product each month one time. Good price.

### ⭐⭐⭐⭐⭐ Great
*by P***Z on 20 April 2025*

Unfortunately I didn't receive it., but I had used the Product before and it is a great product.

## 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

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-06-24*