Least Killifish

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Least Killifish, scientific name Heterandria Formosa, is the smallest livebearers fish living in North America.
The adult least killifish is less than 1 inch long. The small size and interesting behavior makes least killifish the most desirable fish for small size sustaining aquariums.

Stalker or Devoted male fish


Adorable Least Killifish male


Least Killifish breeding tank


Least Killifish Livebearers the beginning