Notropis lutrensis

Notropis lutrensis, commonly known as the red shiner or red-horse minnow, is a striking freshwater fish belonging to the family Leuciscidae. These fish are notable for their deep-bodied, laterally compressed shape and can reach lengths of up to 3 inches (7.6 cm). Their most distinguishing feature is the dramatic color change seen in males during the breeding season, where they display iridescent pink, purple, and blue hues along their sides, complemented by a vivid red crown and fins. This splendid coloration makes them a popular choice among aquarium enthusiasts.

In their natural habitat, red shiners inhabit rivers and streams across North America, particularly in the central and southern regions. They prefer shallow waters with a sandy or gravel bottom, often found in areas with moderate current and abundant vegetation. Their social nature leads them to form schools, providing both safety in numbers and a dynamic display for observers. These fish are active swimmers and thrive in well-oxygenated waters.

Behaviorally, Notropis lutrensis is known for its spirited and playful demeanor. They are often seen darting about, foraging for food, and interacting with one another. This species is also capable of adapting to various water conditions, which makes it a resilient addition to diverse freshwater setups.

Overall, the red shiner’s vibrant appearance and engaging behavior make it an excellent choice for community tanks and aquascapes, appealing to both novice and experienced aquarists alike.

To successfully care for Notropis lutrensis, it's important to replicate their natural environment as closely as possible. The ideal water parameters include a temperature range of 20-24°C (68-75°F) and a pH level between 6.5 and 7.5. Since they are a freshwater species, salinity levels should remain at zero. Ensure that the tank size is a minimum of 40 liters to provide ample swimming space for these active fish.

Feeding Notropis lutrensis is straightforward as they are omnivorous and will accept a variety of foods. A balanced diet should consist of high-quality flake food, supplemented with live or frozen foods like daphnia and brine shrimp to enhance their color and overall health. Compatibility is generally good with other small, peaceful fish, making them suitable for community tanks.

When introducing new fish to your setup, proper acclimation is crucial. Gradually acclimate Notropis lutrensis to avoid stress, ideally over a period of several hours. Quarantine newcomers for at least two weeks to prevent the spread of diseases. Regular water changes and tank maintenance will help keep your fish healthy and vibrant.

Notropis lutrensis is suitable for shipping due to its hardiness. When packing, ensure a density of about 1 fish per liter to minimize stress during transit. Ideal temperatures for shipping should be maintained between 18-22°C (64-72°F). This species is not listed under CITES, simplifying export regulations.