Kleins Butterfly

The Klein’s Butterflyfish, *Chaetodon kleinii*, is a beautiful and active addition to a marine aquarium. Its body is primarily yellow, often with a broad, dark band running vertically through the eye and another behind the pectoral fin. The fins are typically yellow, and some individuals may display subtle blue or white markings. This species is known for its graceful swimming and constant foraging behavior.

A minimum tank size of 75 gallons is recommended for the Klein’s Butterflyfish to provide ample swimming space and a stable environment. They are considered an intermediate-level fish, requiring good water quality and a varied diet. While generally peaceful, they can be territorial towards other butterflyfish or similar-shaped species. They are best kept singly or in a very large aquarium with other peaceful tankmates.

In the aquarium, the Klein’s Butterflyfish will actively graze on live rock, consuming algae and small invertebrates. Their diet should be supplemented with a variety of high-quality marine flake food, pellet food, frozen mysis shrimp, and enriched brine shrimp. Offering a diverse diet is crucial for their long-term health and vibrant coloration. They typically reach a maximum size of around 5 inches in captivity. Native to the Indo-Pacific region, they are found in coral reefs and lagoons.