Nothobranchius rachovii – 3.5–4 inches Butterfly Fin Green Danio Omnivorous—eat a varied diet including

Omnivorous—eat a varied diet including high-quality flakes

Males establish dominance via subtle sparring (“topping”) and show nasal tubercles

with moderate hardness (GH 5–20 °dH)

and cultural significance

commonly known as the Redtail Notho or Gunther’s Killifish

Nothobranchius rachovii – 3.5–4 inches Butterfly Fin Green Danio Omnivorous—eat a varied diet includingSpecies Overview Nothobranchius rachovii, commonly known as the Rainbow Killifish, is a striking species native to seasonal pools in East Africa. Males display vivid colors, including red, orange, and blue, while females are generally more subdued in color. This species is notable for its short lifespan, typically living only 612 months, which is characteristic of annual killifish. They are best kept in species only setups or with other peaceful