Brightwell Aquatics MicroBacter Start XLM Nitrifying Bacteria, 500 mL

Brightwell MicroBacter Start XLM is a 15x concentrated blend of nitrifying bacteria that kickstarts biological filtration. It helps new tanks establish beneficial bacteria quickly and supports crowded tanks by reducing ammonia and nitrite.

• 500 mL bottle
• 15x concentrated formula
• Speeds up colonization by beneficial nitrifying bacteria
• Helps reduce ammonia and nitrite in high-density tanks
• Useful after cleaning and for tank recovery
• Works with sand and rock substrates

Follow the label directions and dosage for your tank size.