Roseline Shark/Dension

The Roseline Shark, scientifically known as Puntius denisonii but commonly referred to as the Denison Barb, Red-line Torpedo Barb, or simply Roseline Shark, is a stunning and highly sought-after freshwater fish species known for its vibrant colors and distinctive appearance. Native to the rivers and streams of southern India, this fish has gained popularity among aquarium enthusiasts for its elegant, torpedo-shaped body and striking red markings. Here's a detailed description of the Roseline Shark:

Appearance: The Roseline Shark is celebrated for its breathtaking coloration and sleek body shape. Its body is elongated, slender, and torpedo-like, which allows it to gracefully maneuver through the water. The most striking feature of this fish is the vivid, horizontally running red stripe that extends from the tip of its snout to the base of its caudal (tail) fin. This striking red line contrasts beautifully with the silvery or gold background color of its body, making it a focal point in any aquarium. Additionally, the dorsal fin of the Roseline Shark is marked with a black spot, adding to its unique appearance.

These fish can grow to a size of around 4 to 6 inches (10 to 15 centimeters), and their appearance becomes more vibrant and defined as they mature.

Behavior: Roseline Sharks are known for their lively and active behavior. They are shoaling fish, which means they thrive when kept in groups of five or more individuals. In a group, they exhibit fascinating social behavior and swim together in harmony, creating a captivating and dynamic display in the aquarium. These fish are generally peaceful and can coexist with other non-aggressive community fish species.

Habitat and Care: To provide an optimal habitat for Roseline Sharks, set up an aquarium with a spacious swimming area and some planted areas for shelter. They prefer clean, well-oxygenated water with a temperature range of 72°F to 78°F (22°C to 26°C) and a pH level between 6.5 to 7.5. Adequate filtration and regular water changes are essential to maintain water quality.

Diet: Roseline Sharks are omnivorous and enjoy a varied diet. Offer them high-quality flakes, pellets, and granules as a staple food. Supplement their diet with live or frozen foods like brine shrimp, bloodworms, daphnia, and vegetable matter, such as blanched spinach or zucchini. Providing a balanced diet ensures their vibrant coloration and overall well-being.