The Bluefin Killifish (Lucania goodei) is a small, brightly colored species native to the southeastern United States. Known for its vibrant blue fins and iridescent body, this fish is a favorite among aquarists who appreciate its beauty and hardy nature. Its peaceful demeanor and adaptability make it suitable for a variety of freshwater setups, including biotope aquariums.

Introduction

Common Name: Bluefin Killifish

Scientific Name: Lucania goodei

Size: 1.5–2 inches (4–5 cm)

Lifespan: 2–3 years

The Bluefin Killifish is a stunning yet underrated species in the hobby. Its small size and shimmering coloration make it an excellent choice for nano tanks or community aquariums. Its adaptability to various water conditions and diet further add to its appeal for beginners and experienced aquarists alike.

Temperature: 68–78°F (20–26°C)

pH: 6.0–7.5

Hardness: 4–15 dGH (soft to moderately hard water)