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⚡ Kickstart your aquarium’s ecosystem with science-backed speed and safety!
Brightwell Aquatics MicroBacter Start XLF is a 500 ml, 15x concentrated liquid formula designed to rapidly establish and maintain biological filtration in freshwater aquariums. It accelerates the nitrogen cycle within 5-7 days, reduces harmful ammonia and nitrite levels, and supports high-density aquatic environments. Safe for shrimp and effective post-cleaning or medication, this American-made product ensures a stable, thriving tank ecosystem with a shelf life exceeding one year.









| ASIN | B086Z6DS4M |
| Allergen Information | Sulphites Free |
| Best Sellers Rank | #41,218 in Pet Supplies ( See Top 100 in Pet Supplies ) #353 in Aquarium Water Treatments |
| Brand | Brightwell Aquatics |
| Brand Name | Brightwell Aquatics |
| Customer Reviews | 4.6 out of 5 stars 1,410 Reviews |
| Included Components | MicroBacterStart XLF |
| Item Form | Liquid |
| Item Type Name | Water Conditioner |
| Item Weight | 1.2 pounds |
| Liquid Volume | 500 ml |
| Manufacturer | Brightwell Aquatics |
| Manufacturer Part Number | BACSTARTXLF500 |
| Model Number | BACSTARTXLF500 |
| Pet Type | Fish |
| Target Species | Fish |
| UPC | 810086019618 |
| Unit Count | 1 Count |
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