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Bengal Danio
Devario devario
Animalia›Chordata›Actinopterygii
📍 South Asia (India)
A larger danio species from South Asia, featuring a silvery-blue body with bold blue-green horizontal stripes and an active, schooling disposition. It grows to about 4 inches and benefits from a longer tank with open swimming space; keep in groups of 6 or more.
Care Guide
Diet
Bengal Danios are omnivorous and should be fed high-quality flake foods, micro pellets, and small frozen foods like brine shrimp and daphnia once daily in small portions. Supplement with vegetable matter such as blanched spinach or algae-based foods occasionally to ensure balanced nutrition.
Behavior
Bengal Danios are highly active, energetic schooling fish that spend most of their time in the upper water column darting and chasing. They are peaceful but can be boisterous, so they require ample open swimming space and should always be kept in groups of 6 or more to prevent stress and aggression toward tank mates.
Breeding
Breeding Bengal Danios in captivity is difficult and rarely achieved in home aquariums. They require very specific conditions including cooler water temperatures, dense vegetation for egg scattering, and large tank space. Most captive specimens are wild-caught or commercially bred in specialized facilities.
Tank Mates
Similar size, peaceful temperament, and preference for upper water column make them ideal companions
Closely related danio species with compatible water parameters and schooling behavior
Another danio species with matching activity levels and temperature requirements
Peaceful bottom-dweller that won't compete for space and helps maintain tank cleanliness
Peaceful schooling fish with similar size and water parameter preferences
Common Diseases
Ich (Ichthyophthirius multifiliis)
White spots on body and fins, flashing against objects, labored breathing, loss of appetite
Raise water temperature gradually to 28-30°C, perform daily 25% water changes, use aquarium salt (1 tsp per gallon) or commercial ich treatment for 7-10 days
Fin Rot
Frayed or deteriorating fin edges, discoloration at fin margins, lethargy
Improve water quality with frequent partial water changes, maintain optimal temperature and pH, use antibacterial medication if severe
Bacterial Infection
Sores or lesions on body, cloudy eyes, torn fins, behavioral changes
Perform 50% water change immediately, maintain pristine water conditions, use broad-spectrum antibiotic treatment if condition worsens
Parasitic Infections
Excessive scratching, visible parasites, weight loss, clamped fins
Quarantine affected fish, treat with antiparasitic medication, maintain water quality and temperature stability
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Water it likes
- ph
- 6.5–7.5
- ammonia
- 0 ppm
- nitrate
- <20 ppm
- temperature
- 64–73°F (18–23°C)