Brightwell MicroBacterSTARTXLM- 250 ml

MicrōBacter Start XLM – Professional 15x Strength Live Tank Starter for Marine & Brackish Aquaria

MicrōBacter Start XLM is a super concentrated 15x strength live nitrifying bacterial culture designed for rapid cycling and establishing biological filtration in marine, reef, and brackish aquariums. It rapidly reduces toxic ammonia and nitrite, typically cycling a new tank in about 7 days, while helping recover aquariums after overcrowding, medication, or substrate cleaning. This powerful bioculture works effectively with fewer temperature and shelf life limitations, making it ideal for both new setups and emergency situations where filter bacteria are compromised. Use it to prevent “New Tank Syndrome” and maintain healthy water quality in heavily stocked systems.

Key Features:
‣ 15x concentrated live nitrifying bacteria for rapid aquarium cycling
‣ Effective in marine, reef, and brackish environments
‣ Rapidly removes toxic ammonia and nitrite naturally
‣ Supports recovery from overcrowding, cleaning, or filter damage
‣ Long shelf life (up to 18 months) and stable at higher temperatures
‣ Safe to overdose up to 5 times during emergencies
‣ Compatible with natural and artificial porous substrates

Ideal For:

• Quickly cycling new marine or brackish aquariums

• Re-establishing biological filtration after cleaning, medication, or emergencies

How to Use:
Shake the bottle vigorously before use. Add 30 ml per 25 gallons (95 L) of aquarium water to seed biological filtration. For emergencies, dose up to 5 times the standard amount. Use Brightwell Erāse-Cl to remove chlorine and chloramine from tap water before dosing. Avoid using live sand or dry seeded artificial live rock during cycling. Test ammonia, nitrite, and nitrate levels regularly to monitor progress. After cycling, switch to MicrōBacterCLEAN to stabilize the system.