Brightwell MicrōBacter STARTXLM

Grouped product items
Alphabetical Qty
Brightwell MicrōBacter STARTXLM, 250ml
SKU: BW-BACSTXLM250
$24.21
Out of stock
Brightwell MicrōBacter STARTXLM, 500ml
SKU: BW-BACSTXLM500
$44.18
Out of stock
Brightwell MicrōBacter STARTXLM, 1L
SKU: BW-BACSTXLM1L
$75.98
Out of stock
Brightwell MicrōBacter STARTXLM, 2L
SKU: BW-BACSTXLM2L
$141.08
Out of stock

This product is available at our retail partners. You can also find replacement parts and outlet items in our Outlet and Parts Store.


Brightwell MicrōBacter Start XLM establishes a nitrifying filter in marine and brackish tanks, cycling in about seven days when used without competing bacteria. It removes toxic ammonia and nitrite with non-pathogenic nitrifying bacteria.

Available in four sizes: 250ml, 500ml, 1L, and 2L

Live Tank Starter Nitrifying Bioculture for Cycling New Marine Aquariums

Brightwell MicrōBacter Start XLM establishes a nitrifying filter in marine and brackish aquariums, especially for new setups, cycling in about seven days if used correctly and without competing bacteria or toxins (please review the entire webpage). It effectively removes toxic ammonia and nitrite through non-pathogenic nitrifying bacteria. Although highly potent, it can be overdosed up to five times during aquarium emergencies. Choose this product first to eliminate ammonia when the filter is compromised or in cases of overcrowding.

Product Highlights:

  • Highly concentrated 15X suspension of live, non-pathogenic microbes, specifically formulated to establish biological filtration in new aquarium setups quickly and to enhance the rate of nitrification in existing systems.
  • Useful for rapidly re-establishing nitrification bacteria in case of an emergency
  • Useful in aquariums with high population densities and when adding new fish
  • Re-establishes nitrifying bacteria after cleaning rocks and surfaces and using medications
    1. Rapid reduction of ammonia and nitrite
    2. Prevents “New Tank Syndrome”
  • Supplied in a proprietary base, which provides for maximum longevity
  • Formulated utilizing extensive data compiled by microbiologists

Feeding and Care Directions:

See the label's instructions

Write Your Own Review
You're reviewing:Brightwell MicrōBacter STARTXLM
Your Rating