The fathead minnow (Pimephales promelas) is a small fish native to North America. It grows to about 2 inches in length and can be found in lakes, streams, rivers, and ponds throughout most of the United States and Canada. They have a broad diet that includes insects, algae, crustaceans, and detritus. In recent years, the fathead minnow has become popular as an aquarium fish and can be found in pet stores across the continent.
The fathead minnow, also known as the common shiner, is a species of freshwater fish native to North America. It belongs to the family Pimephales and is an abundant inhabitant of streams, rivers, ponds, and lakes across much of its range. The common name comes from its large head and eyes, which give it a distinctive appearance. The fathead minnow is highly adaptable and can live in a wide variety of environments and climates, including brackish water. It is a hardy fish, tolerant to varying temperatures and pollution levels, making it popular as an aquarium species.
The fathead minnow grows to about 4-6 cm (1.5-2.5 inches) long and is a silvery color with dark horizontal stripes running along its body, giving it an iridescent sheen. It has large eyes and a large head that gives it the name fathead. Its diet consists of zooplankton, aquatic insects, insect larvae, small crustaceans, and aquatic worms. The fathead minnow is an important part of the food chain in its natural environment, as it serves as a major food source for larger predators.
The fathead minnow has been widely used in scientific research due to its hardiness and availability, allowing biologists to study many aspects of fish behavior, physiology, ecology, and genetics. It has also been used in the pet trade, often being bred as a feeder fish for larger aquarium species. In recent years, the fathead minnow has become increasingly popular as an aquarium species due to its active nature and relatively small size. Despite this popularity, its natural populations are declining due to habitat destruction, pollution, and the introduction of non-native species. As a result, conservation efforts are underway to protect this important species and its habitats.