---
product_id: 497951650
title: "Brightwell Aquatics MicroBacterStart XLF - 15X Concentrated Live Tank Starter for Cycling New Freshwater Aquarium and Establishing Nitrifying Bacteria"
brand: "brightwell aquatics"
price: "25671CFA"
currency: XOF
in_stock: true
url: https://www.desertcart.sn/products/497951650-brightwell-aquatics-microbacterstart-xlf-15x-concentrated-live-tank-starter-cycling
store_origin: SN
region: Senegal
---

# 15X concentrated live microbes non-pathogenic nitrifying bacteria 5-7 days rapid tank cycling Brightwell Aquatics MicroBacterStart XLF - 15X Concentrated Live Tank Starter for Cycling New Freshwater Aquarium and Establishing Nitrifying Bacteria

**Brand:** brightwell aquatics
**Price:** 25671CFA
**Availability:** ✅ In Stock

## Summary

> ⚡ Fast-track your aquarium’s health with MicroBacterStart XLF!

## Quick Answers

- **What is this?** Brightwell Aquatics MicroBacterStart XLF - 15X Concentrated Live Tank Starter for Cycling New Freshwater Aquarium and Establishing Nitrifying Bacteria by brightwell aquatics
- **How much does it cost?** 25671CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/497951650-brightwell-aquatics-microbacterstart-xlf-15x-concentrated-live-tank-starter-cycling)

## 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

- • **Long-Lasting Potency:** Proprietary base ensures maximum microbial longevity and effectiveness.
- • **Emergency Bacteria Rescue:** Re-establishes nitrifying bacteria after cleaning or medication stress.
- • **Say Goodbye to New Tank Syndrome:** Rapidly reduces toxic ammonia and nitrite in just days.
- • **Turbocharge Your Tank's Biofilter:** 15X concentrated live suspension accelerates nitrification like no other.
- • **Optimized for High-Density Aquariums:** Supports heavy fish populations with robust biological filtration.

## Overview

MicroBacterStart XLF is a 15X concentrated liquid suspension of live, non-pathogenic nitrifying bacteria designed to rapidly establish and maintain biological filtration in freshwater aquariums. It accelerates the cycling process to 5-7 days, prevents toxic ammonia and nitrite buildup, and is ideal for new setups, emergency bacteria restoration, and high-density fish tanks.

## Description

Brightwell Aquatics MicroBacterStart XLF - 15X Concentrated Live Tank Starter for Cycling New Freshwater Aquarium and Establishing Nitrifying Bacteria

## Features

- Concentrated 15X Suspension of LIVE non-pathogenic microbes, specifically formulated to extremely rapidly establish biological filtration in new aquarium set-ups, and to enhance the rate of nitrification in existing systems.
- Useful for rapidly re-establishing nitrification bacteria in case of an emergency
- Particularly useful in aquaria with high population densities and when adding new fish. Supplied in a proprietary base which provides for maximum longevity.
- Helpful to re-establish nitrifying bacteria after cleaning rocks and surfaces and after use of medications. 1. Rapid reduction of ammonia, and nitrite. 2. Prevents “New Tank Syndrome.”
- Takes 5-7 days to cycle.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions | 12.19 x 3.91 x 3.71 cm; 140.89 g |
| Item model number | BACSTARTXLF125 |
| Item Form | Liquid |
| Size | 125-ml |
| Quantity | 1 |
| batteries required | No |
| Item Weight | 141 g |

## Product Details

- **Brand:** Brightwell Aquatics
- **Liquid volume:** 125 Milliliters
- **Item weight:** 4.97 Ounces
- **Item form:** Liquid
- **Manufacturer:** Brightwell Aquatics

## Images

![Brightwell Aquatics MicroBacterStart XLF - 15X Concentrated Live Tank Starter for Cycling New Freshwater Aquarium and Establishing Nitrifying Bacteria - Image 1](https://m.media-amazon.com/images/I/611mZuJRXKL.jpg)

## Available Options

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

## Questions & Answers

**Q: I had a major nitrite and nitrate spike. crazy high. my ph was super low, probably the only reason my beta survived. how long will this take to work?**
A: I'm sorry but the person who said it would cycle in 2 days is absolutely wrong. Scientifically that cannot and will not happen. If you educate yourself on the nitogen cycle you will see why. You are right about your ph being super low and your beta surving because the lower your ph is;  less toxic form or ammonium will be present than the more toxic ammonia.

**Q: How long does the water stay cloudy after use?**
A: Once the bacteria begins to bloom , the cloudiness could last a couple weeks . API accu-clear will clear up the cloudiness without affecting the cycle.

**Q: I have nitrogen spikes in my aquarium sometimes after my water changes. Would using this in replacement water be a reasonable preventative or waste $?**
A: This product is hardly a waste of money , I use it in replacement water after every monthly gravel vac to prevent (new water syndrome). My fish seem to instantly detect its presense quicker than Seachems Stability.  Nitrogen prevention , however isn't exactly what this product is for. Yes true , beneficial bacteria products help convert ammonia into nitrite , and then nitrite into harmless nitrate. But the cycle time in which this occurs takes many weeks of patience. If your filter is already cycled , it still takes many days to go through the conversion process. Therefore during a nitrogen spike , you would be better off purchasing Seachems Safe (and be prepared for the white powder substance to smell like sulfur) , this is normal and the answer to your nitrogen problem.

**Q: When it says remove "filter floss" what exactly does it mean?**
A: That means take the filter cartridges out of your filter ........ In other words run it without the carbonated screens that you put in.

## Frequently Bought Together

- Brightwell Aquatics MicroBacter Start XLF - Concentrated Freshwater Nitrifying Bacteria - Quick Start Fish Tank Starter, Lift Microbe Levels & Water Filtering - Aquarium Water Treatments, 4.22 fl oz
- API TAP WATER CONDITIONER Aquarium Water Conditioner 16-Ounce Bottle
- API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-colored

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-01-29*