Denison Barb / Roseline Shark (Sahyadria denisonii)

Quarantined barb for planted and community aquariums in Canada.

The Denison Barb, also known as the Roseline Shark, is a premium active schooling fish with a bold red stripe, black lateral line, and yellow-black tail markings. It is best suited to larger aquariums with strong filtration, good oxygenation, and open swimming space.

Why This Fish Stands Out

• Premium schooling fish with red-line and roseline pattern
• Peaceful but very active fish for larger aquariums
• Excellent movement fish for large planted or river-style displays

Aquarium Setup & Behaviour

Provide a long aquarium, strong filtration, high oxygenation, and open swimming room. This species is too active and large-growing for small aquariums.

Best kept in a group of 6 or more when tank size allows. Group keeping improves confidence and reduces stress.

Feeding

Feed quality pellets or flakes with frozen/live foods and vegetable-based foods.

Natural Colour & Livestock Integrity

Colour comes from genetics, maturity, health, and proper conditioning. Topick Aquarium does not use hormones to artificially enhance fish colour.

Topick Aquarium Livestock Standard

All fish at Topick Aquarium are carefully quarantined and conditioned to our stable local tap water before sale. Although barbs and rasboras may come from different natural habitats, stable water, gradual acclimation, healthy feeding, and a mature aquarium matter more than chasing exact wild parameters.

Care Summary

• Scientific Name: Sahyadria denisonii
• Adult Size: Approximately 12–15 cm
• Care Level: Intermediate
• Recommended Tank: Mature aquarium with open swimming space, stable filtration, and compatible active tankmates

Frequently Asked Questions

Is Denison Barb the same as Roseline Shark?
Yes. Roseline Shark is a common trade name for Sahyadria denisonii.

Does Denison Barb need a large tank?
Yes. It is an active schooling fish that needs a long aquarium and strong water quality.

Is it peaceful?
It is generally peaceful with suitable tankmates, but it is fast and active, so timid small fish may be stressed.

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