Rainbow Shiner (Shiner Barb) - Notropis Chrosmosus

The Shiner Barb (Notropis chrosomus), more widely known as the Rainbow Shiner, is a dazzling North American native that truly lives up to its name. During the breeding season, males display intense flashes of electric blue, magenta, and violet—an astonishing contrast to their otherwise silvery bodies. These colors are especially vivid under cool, well-oxygenated conditions, making them a favorite among biotope and river-style aquascapes.

Peaceful and active, Shiner Barbs do best in groups of six or more, where their natural schooling behavior brings life and shimmer to the midwater column. They thrive in clean, flowing water with plenty of open swimming space and benefit from the addition of smooth stones, driftwood, and shaded areas. Though not as commonly seen in the trade, they adapt well to aquarium life when provided with stable water parameters and a varied diet.

Difficulty – Moderate (requires good water quality and flow)
Temperament – Peaceful, social
Size – Up to 3 inches
Tank Size – 20 gallons+ (larger for full schools)
Temperature – 64°F to 75°F
Diet – Omnivore (high-quality flakes, micro-pellets, frozen daphnia or brine shrimp)
pH – 6.5 to 7.5
🌈 The Shiner Barb is a North American gem—brilliant, active, and perfect for aquarists looking to add a burst of seasonal color and energy to a coolwater community.

This listing is for 1 Shiner Barb – Notropis chrosomus*