Overview
Brightwell MicroBacter START XLM 4oz is a high-performance nitrifying bacteria solution that establishes strong biological filtration in marine aquariums. Its concentrated blend of selected bacteria strains rapidly converts ammonia and nitrite into far less harmful nitrate, helping protect livestock. Whether you’re cycling a new tank or restoring balance in an established one, it speeds the process for both beginners and experts.
Key Features
- Concentrated nitrifying bacteria for robust biofiltration
- Rapidly converts ammonia and nitrite into less harmful nitrate
- Accelerates cycling of new and re-balancing of existing tanks
- Helps minimize toxic ammonia and nitrite spikes
- Suited to both novice and experienced marine aquarists
Specifications
| Weight | 0.4 lbs |
|---|---|
| Dimensions | 2 × 2 × 7 in |
| Volume | 4 oz |
| Brand | Brightwell |
| UPC | 810086019502 |
About Brightwell Aquatics
Brightwell Aquatics develops biological additives and supplements for reef and marine systems. Visit Brightwell Aquatics.
Frequently Asked Questions
What does MicroBacter START XLM do?
It seeds nitrifying bacteria that convert ammonia and nitrite into nitrate to cycle a marine tank quickly.
Is it for new tanks only?
No, it helps both new setups and restoring balance in established marine aquariums.


























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