Roseline Shark For Sale | Denison Barb | Sahyadria denisonii
FYI: Some nano fish are a little harder to get a hold of and will take a little longer for us to ship. Please be patient
Add one of the most colorful and active schooling fish to your aquarium with the Roseline Shark (Sahyadria denisonii), also known as the Denison Barb or Red Line Torpedo Barb. With a sleek silver body, bright red stripe, black markings, and yellow accents, this popular freshwater fish brings exceptional color and movement to a community aquarium.
Roseline Sharks are peaceful schooling fish that look especially impressive in groups. They thrive in well-maintained freshwater setups with moderate water flow and a balanced environment.
| Species | Sahyadria denisonii |
|---|---|
| Common Names | Roseline Shark, Denison Barb, Red Line Torpedo Barb |
| Size | Up to 3 inches (7.5 cm) |
| Temperament | Peaceful, schooling |
| Water Conditions | Temperature: 72–82°F (22–28°C), pH: 6.0–7.5 |
| Compatibility | Best with other peaceful community fish |
FAQ
How many Roseline Sharks should I keep in my aquarium?
It’s best to keep at least 6 Roseline Sharks together to mimic their natural schooling behavior. They are more active and display better coloration in groups.
What kind of tank size is recommended for Roseline Sharks?
A minimum of 20 gallons is recommended for a small group of Roseline Sharks. Larger tanks provide more stable water conditions and better space for movement.
Are Roseline Sharks easy to care for?
Yes, Roseline Sharks are relatively easy to care for as long as water parameters are maintained and they are kept in a group. Regular water changes and a balanced diet are key.

Adam Powell –
I added six Roseline Sharks to my 30-gallon tank and they’ve been active and colorful since day one. The red stripe stands out well in the light. They don’t stress other fish and swim together nicely.
Eric Wallace –
The fish arrived a bit late due to shipping delays, but they were healthy and vibrant. I keep them in a community tank with tetras and guppies. They don’t fight and add a lot of visual interest.
Emily Berry –
Great addition to my freshwater setup. The schooling behavior is impressive and they stay active throughout the day. I’ve kept them for three months now and they’re still in great condition.