Denison Barb – 3 Pack or 6 Pack

Denison Barbs are colorful, energetic freshwater schooling fish known for their streamlined silver bodies, bold black lateral stripes, vivid red markings, and yellow-and-black tails. Also called Roseline Sharks, Red-Line Torpedo Barbs, and Red Comet Barbs, they create an impressive display when swimming together in a large freshwater aquarium.

Denison Barbs are schooling fish and should be maintained in groups of at least six. Choose the 6-pack when starting a new school. The 3-pack is intended for customers adding fish to an existing Denison Barb school.

Available Options

3 Pack
Includes three small Denison Barbs. This option is recommended for adding to an established school.

6 Pack
Includes six small Denison Barbs and is the recommended option when starting a new school.

Fish Care

Scientific Name: Sahyadria denisonii
Common Names: Denison Barb, Roseline Shark, Red-Line Torpedo Barb and Red Comet Barb
Care Level: Intermediate
Temperament: Peaceful and Active
Approximate Adult Size: Up to 6 Inches
Minimum Aquarium Size: 55 Gallons
Recommended Aquarium Size: 75 Gallons or Larger
Minimum Group Size: Six
Water Temperature: 60–77°F
pH: 6.5–7.8
Water Hardness: Soft to Moderately Hard
Diet: Omnivore
Aquarium Level: Middle
Freshwater Only: Yes

Aquarium Requirements

Denison Barbs are fast and highly active swimmers that require a long aquarium with plenty of open swimming space. A 75-gallon or larger aquarium is strongly recommended for an established school.

Provide plants, smooth rocks, driftwood, and areas of moderate water movement while preserving an open central swimming area. Clean, highly oxygenated water and consistent maintenance are important for their long-term health.

A secure aquarium lid is recommended because these active fish may jump when startled.

Schooling Requirements

Denison Barbs should not be kept alone. Maintaining a school of at least six helps them feel secure, encourages natural swimming behavior, and allows their coloration to be displayed more confidently.

The 3-pack should only be purchased when adding to an existing group. Customers beginning a new Denison Barb school should select the 6-pack.

Feeding

Denison Barbs are omnivores and should receive a varied diet. Offer quality tropical flakes or pellets along with frozen or freeze-dried foods such as brine shrimp, daphnia, bloodworms, and mysis shrimp.

Spirulina-based foods and occasional vegetable matter can also be included to support balanced nutrition and strong coloration.

Tank Mates

Denison Barbs are compatible with many similarly sized peaceful and active freshwater fish, including:

Other Denison Barbs
Larger tetras
Peaceful barbs
Rainbowfish
Corydoras
Peaceful loaches
Compatible gouramis

Avoid very small, slow-moving, long-finned, highly aggressive, or predatory fish. Tank mates should be comfortable with the Denison Barb’s active swimming behavior.

Acclimation

Keep the aquarium lights dim or turned off during acclimation. Gradually acclimate the fish to the aquarium’s temperature and water conditions, and never add shipping water to the main aquarium.

Provide a quiet environment after introduction and allow the new fish time to join the school before offering food.

Fish Quarantine

These fish will ship within a 14-day quarantine window, depending on their current stage of quarantine.

Please allow additional processing time before shipment. Tracking information will be provided once the fish have completed preparation and have been transferred to the carrier.

Live-Fish Shipping

Live fish ship by FedEx Priority Overnight for a flat $39.99 livestock shipping charge. Orders containing $300 or more in qualifying live animals receive free live-animal shipping.

Live-animal orders ship Monday through Wednesday to reduce the risk of weekend carrier delays.

Live Arrival and DOA Guarantee

Your fish are protected by our Live Arrival Guarantee. Please inspect all livestock immediately upon delivery.

Any dead-on-arrival claim must be submitted within 12 hours of the carrier-recorded delivery time. Clear photographs showing the affected animal outside of the shipping water must be included with the claim. Please do not discard the animal or its packaging until the claim has been reviewed.

Claims submitted after the 12-hour reporting window or without the required photographs may not qualify for coverage. Please review our complete Live Arrival Guarantee before ordering.

Why Shop With Infinity & Beyond Aquatics?

Carefully coordinated livestock orders
Protective insulated packaging appropriate for current weather conditions
Priority Overnight live-animal shipping
Live Arrival and DOA protection
Support with acclimation, compatibility, feeding, and ongoing care
Personal service from experienced aquarium keepers

Important Livestock Notice

The product photographs are representative of the fish you will receive. Natural size, coloration, pattern, and appearance may vary between individual fish.

Denison Barbs are schooling fish and should be maintained in groups of at least six. Please confirm that your aquarium has sufficient swimming space for the entire adult school before ordering.

These are freshwater fish and must never be placed in a saltwater aquarium.