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

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

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?

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?

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 $?

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?

That means take the filter cartridges out of your filter ........ In other words run it without the carbonated screens that you put in.

4.4/5

Product ID: 497951650

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Details

Brand
Brightwell
Liquid volume
125
Item form
Liquid
Target species
Fish
Manufacturer
Brightwell

⚡15X concentrated live microbes

🧪rapid ammonia & nitrite reduction

⏱️cycles tank in 5-7 days

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

Description

⚡ Fast-track your aquarium’s health with microbial power!

BEAT NEW TANK SYNDROME - Prevents toxic ammonia and nitrite spikes to protect your aquatic investment
TURBOCHARGE YOUR TANK SETUP - 15X concentrated live bacteria for ultra-fast biological filtration activation
EMERGENCY NITRIFICATION RESCUE - Quickly re-establishes beneficial bacteria after cleaning or medication use
LONG LASTING PROPRIETARY FORMULA - Ensures maximum bacterial viability and sustained filtration performance
OPTIMIZED FOR HIGH DENSITY AQUARIUMS - Supports heavily stocked tanks and smooth fish introductions

Brightwell Aquatics MicroBacterStart XLF is a 15X concentrated live bacterial suspension designed to rapidly establish and maintain nitrifying bacteria in freshwater aquariums. It accelerates the cycling process to 5-7 days, prevents toxic ammonia and nitrite buildup, and supports high-density fish populations. Ideal for new setups, emergency bacterial restoration, and post-medication recovery, this liquid formula ensures long-lasting biological filtration for a thriving aquatic environment.

Specifications

Package Dimensions	11.68 x 8.89 x 3.81 cm; 136 g
Item model number	BACSTARTXLF125
Item Form	Liquid
Size	125-ml
Quantity	1
batteries required	No
Item Weight	136 g

Have a Question? See What Others Asked

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?

How long does the water stay cloudy after use?

I have nitrogen spikes in my aquarium sometimes after my water changes. Would using this in replacement water be a reasonable preventative or waste $?

When it says remove "filter floss" what exactly does it mean?

Common Questions

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