Marble Hatchetfish
The marble hatchetfish, Carnegiella marthae, is an intriguing freshwater fish known for its distinctive appearance and playful behavior. Native to the rivers and streams of South America, particularly in Brazil, this small fish typically grows to about 2-3 inches in length. The marble hatchetfish features a flattened, laterally compressed body, which allows it to glide effortlessly near the water's surface. Its coloration is characterized by a beautiful marbled pattern of silvery-white and brownish-gray, which helps it blend into its natural habitat.
Marble hatchetfish are known for their remarkable jumping ability and often swim in schools, making them an engaging addition to aquariums. They thrive best in groups of six or more, as this promotes their natural social behavior and reduces stress. These fish prefer well-planted tanks with calm waters and open swimming areas, mimicking their natural environment. Ideal water conditions for marble hatchetfish include temperatures between 74-82°F and a pH range of 6.0-7.5.
As omnivores, marble hatchetfish enjoy a varied diet that includes high-quality flakes, small pellets, and live or frozen foods like brine shrimp and daphnia. Their peaceful disposition, coupled with their unique appearance and lively nature, makes marble hatchetfish a popular choice for aquarists seeking to create an active and colorful community tank.