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The Roseline Shark (Puntius denisonii), also known as the Denison Barb or Torpedo Barb, is a powerhouse addition to any large freshwater community or planted aquarium, blending high-impact aesthetics with essential utility. Featuring a streamlined, torpedo-shaped body accented by a brilliant red stripe that fades into a bold black line and neon-yellow tail spots, this active swimmer is a master of the "high-flow" era of fish keeping—serving as a natural biological indicator of a well-oxygenated environment. It is a dedicated middle-water inhabitant, making it a functional cornerstone of a healthy freshwater ecosystem.
This hardy barb thrives in established systems with massive horizontal swimming space and robust water movement. While generally peaceful and plant-safe, its social nature means it is best kept in schools of six or more to ensure it feels secure and displays its synchronized, high-speed swimming behaviors. To ensure long-term health, provide a varied diet of high-quality flakes, sinking pellets, and occasional treats of frozen Mysis or bloodworms. Ensure your aquarium maintains high oxygen levels and stable water parameters, as this species is particularly vibrant in clean, fast-moving water.
Note: Images shown are stock images and not the actual fish you will receive.
Care Level: Easy
Temperament: Peaceful
Minimum Tank Size: 55–75 Gallons
Diet: Omnivore
Plant Compatible: Yes
Max Size: 4.5–6 Inches
Water Conditions: 60 to 77°F, KH 4 to 12, pH 6.5 to 7.8
The Roseline Shark is a strategic choice for hobbyists looking for "unparalleled kinetic energy" and sophisticated color. Its specialized streamlined shape adds a layer of depth to the mid-water column that few other mid-sized species can match. In the context of modern aquascaping, it is widely considered an essential "accent centerpiece" for adding both horizontal movement and a splash of vivid red to the display. For maximum success, provide an environment with high-capacity filtration and plenty of open space to facilitate its high-metabolic needs and social vitality.
We’ve dialed in the logistics for national Overnight Delivery to ensure your livestock arrives in peak condition. Every order is packed using professional-grade insulation and climate-contingent heat or ice packs, designed to maintain stable temperatures throughout the journey. We handle the technical side of the move so you can focus on the acclimation. Our protocol is built on getting these fish from the facility to your tank with zero compromise on health or vitality.
The Roseline Shark (Puntius denisonii), also known as the Denison Barb or Torpedo Barb, is a powerhouse addition to any large freshwater community or planted aquarium, blending high-impact aesthetics with essential utility. Featuring a streamlined, torpedo-shaped body accented by a brilliant red stripe that fades into a bold black line and neon-yellow tail spots, this active swimmer is a master of the "high-flow" era of fish keeping—serving as a natural biological indicator of a well-oxygenated environment. It is a dedicated middle-water inhabitant, making it a functional cornerstone of a healthy freshwater ecosystem.
This hardy barb thrives in established systems with massive horizontal swimming space and robust water movement. While generally peaceful and plant-safe, its social nature means it is best kept in schools of six or more to ensure it feels secure and displays its synchronized, high-speed swimming behaviors. To ensure long-term health, provide a varied diet of high-quality flakes, sinking pellets, and occasional treats of frozen Mysis or bloodworms. Ensure your aquarium maintains high oxygen levels and stable water parameters, as this species is particularly vibrant in clean, fast-moving water.
Note: Images shown are stock images and not the actual fish you will receive.
Care Level: Easy
Temperament: Peaceful
Minimum Tank Size: 55–75 Gallons
Diet: Omnivore
Plant Compatible: Yes
Max Size: 4.5–6 Inches
Water Conditions: 60 to 77°F, KH 4 to 12, pH 6.5 to 7.8
The Roseline Shark is a strategic choice for hobbyists looking for "unparalleled kinetic energy" and sophisticated color. Its specialized streamlined shape adds a layer of depth to the mid-water column that few other mid-sized species can match. In the context of modern aquascaping, it is widely considered an essential "accent centerpiece" for adding both horizontal movement and a splash of vivid red to the display. For maximum success, provide an environment with high-capacity filtration and plenty of open space to facilitate its high-metabolic needs and social vitality.
We’ve dialed in the logistics for national Overnight Delivery to ensure your livestock arrives in peak condition. Every order is packed using professional-grade insulation and climate-contingent heat or ice packs, designed to maintain stable temperatures throughout the journey. We handle the technical side of the move so you can focus on the acclimation. Our protocol is built on getting these fish from the facility to your tank with zero compromise on health or vitality.
