Roseline Shark

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They are about 2” in size

🐠 Roseline Shark (Denison Barb) Quick Guide

Scientific Name: Sahyadria denisonii
Other Names: Denison Barb, Red-Line Torpedo Barb

🌍 Origin

  • Native to Western Ghats, India

  • Found in clear, fast-flowing streams and rivers

📏 Size

  • Up to 6 inches (15 cm) long

Lifespan

  • Around 5–8 years with good care

💧 Tank Requirements

  • Tank Size: Minimum 55 gallons (larger preferred for groups)

  • Water Temperature: 72–79°F (22–26°C)

  • pH: 6.5–7.8

  • Hardness: 5–25 dGH

  • Filtration: Strong current & well-oxygenated water

🪴 Tank Setup

  • Provide open swimming space

  • Use rocks, driftwood, and plants for cover

  • Dim lighting or floating plants help reduce stress

🍽️ Diet

  • Omnivore

  • Eats high-quality flakes/pellets, frozen/live foods (bloodworms, brine shrimp, daphnia)

  • Include some vegetable matter

🧑‍🤝‍🧑 Behavior & Tankmates

  • Peaceful but active schooling fish

  • Keep in groups of 5–6+ to prevent aggression

  • Good with rainbowfish, rasboras, tetras, gouramis, loaches

  • Avoid slow or long-finned fish (like bettas, angelfish)

🐣 Breeding

  • Difficult in home aquariums

  • Most sold are farm-raised

  • Requires large tank, soft water, and dim lighting for spawning

⚠️ Special Notes

  • Sensitive to poor water quality — needs regular water changes

  • Active swimmers — need space and oxygen

  • Populations in the wild are threatened, so prefer captive-bred specimens

They are about 2” in size

🐠 Roseline Shark (Denison Barb) Quick Guide

Scientific Name: Sahyadria denisonii
Other Names: Denison Barb, Red-Line Torpedo Barb

🌍 Origin

  • Native to Western Ghats, India

  • Found in clear, fast-flowing streams and rivers

📏 Size

  • Up to 6 inches (15 cm) long

Lifespan

  • Around 5–8 years with good care

💧 Tank Requirements

  • Tank Size: Minimum 55 gallons (larger preferred for groups)

  • Water Temperature: 72–79°F (22–26°C)

  • pH: 6.5–7.8

  • Hardness: 5–25 dGH

  • Filtration: Strong current & well-oxygenated water

🪴 Tank Setup

  • Provide open swimming space

  • Use rocks, driftwood, and plants for cover

  • Dim lighting or floating plants help reduce stress

🍽️ Diet

  • Omnivore

  • Eats high-quality flakes/pellets, frozen/live foods (bloodworms, brine shrimp, daphnia)

  • Include some vegetable matter

🧑‍🤝‍🧑 Behavior & Tankmates

  • Peaceful but active schooling fish

  • Keep in groups of 5–6+ to prevent aggression

  • Good with rainbowfish, rasboras, tetras, gouramis, loaches

  • Avoid slow or long-finned fish (like bettas, angelfish)

🐣 Breeding

  • Difficult in home aquariums

  • Most sold are farm-raised

  • Requires large tank, soft water, and dim lighting for spawning

⚠️ Special Notes

  • Sensitive to poor water quality — needs regular water changes

  • Active swimmers — need space and oxygen

  • Populations in the wild are threatened, so prefer captive-bred specimens