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Leopard Danio
Danio rerio
Animalia›Chordata›Actinopterygii
Variety of Zebra Danio · leopard
📍 South Asia (India)
A naturally occurring or selectively developed variety of the zebrafish displaying a spotted leopard pattern in place of the typical horizontal stripes, created by a mutation affecting stripe formation. It shares the same hardy, active, schooling nature as standard zebra danios and is equally beginner-friendly; keep in schools of 6+.
Care Guide
Diet
Leopard Danios are omnivorous and accept high-quality flake foods, micro pellets, and small granules as staple diet. Supplement 2-3 times weekly with live or frozen foods such as brine shrimp, daphnia, and bloodworms to promote color and health. Feed small amounts once daily, only what they can consume in 2-3 minutes.
Behavior
Highly active and energetic schooling fish that constantly dart and chase throughout the water column, particularly in the upper zones. They are peaceful but may nip at slower-moving fish or those with flowing fins; they thrive in groups of 6 or more where they display natural schooling behavior and reduced aggression. Males may display mild territorial behavior during feeding, but this is rarely problematic in properly sized tanks.
Breeding
Breeding in captivity is possible but requires dedicated conditioning and specific setup. Provide a separate breeding tank with fine-leaved plants or spawning mops, slightly warmer water (76-78°F), and well-conditioned pairs fed heavily on live foods. Eggs hatch in 24-36 hours and fry are free-swimming within 3-4 days; remove parents after spawning as they will consume eggs and fry.
Tank Mates
Similar size, peaceful temperament, and comparable water parameter requirements make them ideal companions
Closely related danio species with identical care needs and compatible schooling behavior
Small, peaceful tetras that occupy similar water zones; avoid only if danios show excessive nipping behavior
Peaceful algae-eaters that occupy bottom zones and do not compete with danios
Danios may occasionally nip at shrimp; only suitable in heavily planted tanks with ample hiding spaces
Common Diseases
Ich (Ichthyophthirius multifiliis)
White spots on body and fins, rapid gill movement, lethargy, rubbing against objects
Raise water temperature gradually to 28-29°C over 48 hours, maintain for 7-10 days; use aquarium salt (1 teaspoon per 5 gallons) or commercial ich treatment; perform 25% water changes every 2-3 days
Fin Rot
Frayed or deteriorating fin edges, discoloration at fin margins, lethargy
Perform 25-30% water change immediately, improve water quality and aeration, treat with antibacterial medication (e.g., tetracycline) following product instructions; isolate severely affected fish
Bacterial Infection
Open sores, ulcers on body, cloudy eyes, loss of appetite, color fading
Isolate affected fish in hospital tank, treat with broad-spectrum antibiotic medication, maintain pristine water quality with frequent partial changes, ensure proper nutrition
Columnaris
Whitish film on mouth and gills, difficulty breathing, loss of appetite, rapid gill movement
Isolate immediately, treat with antibacterial medication containing minocycline or tetracycline, increase aeration, maintain water temperature at 24-25°C, perform daily 25% water changes
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Water it likes
- ph
- 6.5–7.5
- ammonia
- 0 ppm
- nitrate
- <20 ppm
- temperature
- 64–77°F (18–25°C)