Roseline Sharks (Sahyadria denisonii), also called Denison Barbs, are vibrant schooling fish known for their torpedo-shaped bodies, vivid red and black stripes, and colorful tail markings. Growing 4–6 inches, they thrive in groups of five or more in spacious, well-filtered aquariums of 55 gallons or larger. Active yet peaceful, they make excellent community fish and display stunning synchronized swimming when kept in schools. They prefer clean, well-oxygenated water (72–79°F, pH 6.6–7.8) and accept a varied omnivorous diet of flakes, pellets, and frozen foods. With their striking coloration and lively nature, Roseline Sharks make a standout addition to any freshwater aquarium.