ATM Colony Freshwater


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True Nitrifying Bacteria: The Real Thing

Only aerobic autotrophs perform effective bio-filtration of toxic ammonia and nitrite. Having a very slow growth rate, a wait of 6-8 weeks may be required to establish bio-filtration in a new aquarium (aquarium cycling).

Colony effectively speeds up this process by introducing millions of these bacteria all at once.

Patience is a virtue in the aquarium hobby, but not at the expense of an education.  Colony also provides the foundation in understanding bio-filtration for the long run so that you’re always in control of it.


  • To rapidly establish bio-filtration in new aquariums
  • After medicating
  • When adding new livestock
  • Replacing media

Additional information


118ml, 1Gal, 236ml, 473ml, 946ml