Denison barb
Introduction
The Denison barb (Sahyadria denisonii), also known as the roseline shark or red-line torpedo barb, is a striking freshwater fish cherished by aquarists for its vibrant coloration and dynamic behavior. Its sleek, torpedo-shaped body features a bold black stripe running from snout to tail, accompanied by a vivid red line above it, creating a captivating visual display. This species is relatively hardy, making it suitable for beginner to intermediate fishkeepers, provided its specific care requirements are met.
Care and Environment
Denison barbs are active, schooling fish that thrive in spacious, well-maintained aquariums. To ensure their well-being, consider the following care guidelines:
What is the minimum tank size for a Denison barb?
A minimum tank size of 200 liters is recommended to accommodate a small group of Denison barbs, as they are active swimmers and require ample space.
What are the ideal water parameters for Denison barbs?
Maintain water temperatures between 18°C and 26°C, with a pH range of 6.5 to 7.8, and water hardness between 5 to 15 dGH to replicate their natural habitat conditions.
How should the aquarium be set up for Denison barbs?
Provide a long, rectangular tank to allow for free swimming, with a substrate of fine gravel or coarse sand. Incorporate hardy plants like Anubias, as well as driftwood and rock formations to offer hiding spots and mimic their natural environment.
Ensure high water quality with efficient filtration systems, such as a canister filter combined with a powerhead, to create moderate to strong water flow and maintain high oxygen levels. Regular water changes and tank maintenance are crucial to keep organic waste levels low.
Denison barbs are omnivorous and should be fed a varied diet, including high-quality flake or pellet foods, supplemented with live or frozen foods like bloodworms, brine shrimp, and daphnia. Incorporating vegetable matter, such as spirulina or blanched vegetables, will also benefit their health.
Origin and Habitat
Denison barbs are endemic to the fast-flowing hill streams and rivers of the Western Ghats in India. These environments are characterized by clear, oxygen-rich waters with rocky substrates and abundant vegetation. The fish are accustomed to strong currents and pristine water conditions, which should be replicated in the home aquarium to ensure their health and well-being.
Temperament and Compatibility
Denison barbs are generally peaceful but can exhibit aggressive behavior if kept in insufficient space or in small numbers. They are schooling fish and should be kept in groups of at least six to promote natural behavior and reduce stress.
What are suitable tank mates for Denison barbs?
Compatible tank mates include other barbs, larger tetras, rainbowfish, and most cichlids. It's important to choose species of similar size and temperament to prevent potential aggression.
Can Denison barbs be kept with smaller or slower-moving fish?
It's advisable to avoid housing Denison barbs with smaller, slower-moving, or long-finned fish, as they may outcompete them for food or engage in fin-nipping behavior.
Providing ample swimming space and maintaining a well-structured environment with hiding spots will help minimize territorial disputes and promote a harmonious community tank.
Interesting Facts
Denison barbs are known for their remarkable jumping ability, a trait they use in the wild to evade predators. Therefore, it's essential to have a tightly fitting lid on the aquarium to prevent escapes.
Are Denison barbs easy to breed in captivity?
Breeding Denison barbs in home aquariums is challenging due to their specific environmental requirements and complex breeding behaviors. Successful breeding has been achieved in controlled environments, but it remains uncommon among hobbyists.
Why are Denison barbs considered endangered?
The species is listed as endangered due to habitat loss and overfishing for the aquarium trade. Conservation efforts and captive breeding programs are crucial to preserving their populations.
Despite their endangered status, Denison barbs continue to captivate aquarists worldwide with their vibrant colors and dynamic behavior, making them a prized addition to well-maintained community tanks.
Sources
All information in this article has been gathered from the following reputable sources:
Overview
Recommended Tank Size 105.7 Gallon (for groups of 6 or more) |
Minimum Group Size 6 |
Minimum Tank Volume 52.8 Gallon |
Maximum Adult Length 5.9 inch |
Average Adult Length 4.7 inch |
Shoaling (6+ required) Yes |
Preferred Water Type Freshwater, well-oxygenated, slightly acidic to neutral |
Temperature Range (°C) 18–26 |
pH Range 6.5–7.8 |
Water Hardness (dGH) 5–15 |
Typical Lifespan (years) 5 years |