Bengal Danio - Devario devario Fish Profile & Care Guide
Introduction
The Bengal Danio (Devario devario) is a vibrant and dynamic species within the Cyprinidae family, that hails from the freshwaters of South Asia, embodying the spirit and diversity of the region's aquatic ecosystems. Known for their energetic swimming and striking coloration, these fish are a testament to the adaptability and resilience of small freshwater species. Bengal Danios are characterized by their slender bodies, adorned with captivating patterns that can vary significantly from individual to individual, making each a unique addition to the aquarium. Their peaceful nature, coupled with a playful demeanor, makes them ideal candidates for community tanks, where they contribute to a lively and harmonious aquatic setting. Beyond their aesthetic appeal, Bengal Danios are also valued for their robustness and ease of care, making them suitable for both novice and experienced aquarists.
Bengal Danios, with their vibrant energy, are inherently peaceful and serve as excellent inhabitants for community tanks featuring larger, more resilient fish species. While generally harmonious, caution is advised when pairing them with exceptionally small or slow-moving fish that possess elaborate fin patterns, to avoid any potential stress or harm. Ideal tank mates encompass small Cyprinids, fellow Danios, livebearers, Rasboras, Tetras, as well as bottom-dwellers like Loaches, Catfish, Gobies, and Dwarf shrimp. Compatibility extends to most Dwarf Cichlids and Gouramis. Thriving in schools of 8 to 10, Bengal Danios display reduced anxiety and a more authentic behavior pattern in such groupings. Their social nature means isolation can lead to discomfort, and group living tempers any domineering tendencies by focusing on social order.
Their preference for environments that replicate the oxygen-rich, moderately flowing waters of their native habitats highlights the need for exceptional water quality and a mature aquarium ecosystem for their well-being. A thoughtfully planted aquarium, with vegetation along the margins and a spacious area for swimming, aligns with their needs and is conducive to detailed aquascaping. The inclusion of floating plants to adjust aquarium lighting is favorable. Given their swift movements, a securely fitted lid is imperative to prevent escape.
Males tend to exhibit better colours when in the presence of rivals. The Bengal Danio has an elongated body with a high back and lateral compression. They have a rounded body and no barbels. Depending on the population, the colouration can vary. Their back and belly are golden-brown, and their flanks are blue, adorned with subtle, transverse yellow stripes. They also have a broad, dark blue bar on each side extending from the rear part of the mid-section to the fork of the caudal fin. Their fins are typically transparent.
Availability
The Bengal Danio isn't avilable any of our marketplace shops, want to be the first to offer it?.
Photos
Sexual Dimorphism
Sexual dimorphism is evident in the Bengal Danios, with males exhibiting more vibrant colouration and slimmer bodies compared to females. Additionally, males are smaller than their female counterparts. Conversely, females have rounder bellies and are less colourful than males. These characteristics make it relatively simple to differentiate males from females.
Quick Facts
| Scientific Name | Devario devario |
|---|---|
| Year Described | 1822 |
| Other Names | Sind Danio, Bengal Turquoise Danio |
| Kingdom | Animalia |
| Classification | Actinopterygii |
| Order | Cypriniformes |
| Family | Cyprinidae |
| Genus | Devario |
| Origins | India Nepal Pakistan Bangladesh Afghanistan |
| Approx Max Size | 8 cm |
| Temperament | Peaceful |
| Aquarium Level | Top |
| Difficulty | Beginner - Intermediate |
| Shoaling | Yes |
| Best kept as | Groups 8+ |
| Diet & Feeding | Omnivore |
| Reproduction | Egg-Scatterer |
| Average Lifespan | Up to 5 Years |
Water Parameters
| Water Type | Freshwater |
|---|---|
| pH | 6.0 - 8.0 |
| GH | 5 - 20 |
| TDS | 36 - 268 |
| ℉ | 59 - 79 |
|---|---|
| ℃ | 15 - 26 |
Natural Habitat
The Bengal Danio is a stunning fish native to South Asia 's freshwater rivers, streams and floodplains, including India, Nepal, Pakistan, Bangladesh, and Afghanistan. These beautiful fish are commonly found in the Indus and the Assam Rivers, where the water is fast-flowing, and the substrate is composed of silt, sand, clay, cobbles, and boulders. They prefer habitats with abundant vegetation, where they can find shelter and food. In the wild, these fish are highly adaptable and can thrive in various aquatic environments, making them a popular choice among aquarium enthusiasts.
Breeding
Bengal Danios are known to breed spontaneously in a well-planted and established aquarium, provided that they are kept in good condition. Although the appearance of a small number of fry is usually enough, those who wish to maximize their breeding efforts can take a more controlled approach. To do so, one can condition the group together and then set up a smaller aquarium filled with mature water. The bottom should be covered with mesh or marbles to prevent the adults from reaching the eggs, while fine-leaved plants like java moss or spawning mops can be introduced to enhance the chances of a successful spawn.
The water in the breeding tank should be slightly acidic to neutral, and the temperature should be increased slightly. An air-powered sponge filter or air stone can also be added to maintain adequate water movement and oxygenation. When the adults are well-conditioned and the females appear to be gravid, one or two pairs can be introduced into the breeding tank. Spawning usually occurs within 24 hours, and the female will appear noticeably slimmer.
After 48 hours, the adults should be removed, and the eggs will hatch within 24 to 36 hours, producing free-swimming fry. Initially, the fry should be fed on Paramecium or similar, gradually introducing artemia nauplii, microworms, dry food, or powdered foods once they are large enough to accept them.
Diet & Feeding
In a captive environment, Bengal Danios are relatively undemanding and will feed on a varied diet consisting of high-quality dried foods supplemented with regular meals of small live or frozen fare. Feeding them various foods such as daphnia, bloodworms, and artemia will help maintain their optimal colouration and overall health and provide them with the necessary nutrients for their well-being. Therefore, it is crucial to provide a well-balanced diet to ensure that the fish receive all the essential nutrients they need.
Frequently asked questions
Other Danios
Published: 08 Feb 2021
Last Updated: 08 Apr 2024