Zebra Danio

The Zebra Danio (Danio rerio) is a freshwater schooling fish valued for horizontal striping and nonstop movement that brings energy to upper and midwater zones. Native to South Asia (India, Bangladesh), this species is popular in planted community aquariums because it combines visual impact with manageable care requirements. It is one of the most adaptable schooling fish for beginner and advanced setups.

Appearance and Coloration

Zebra Danio is known for clean pattern definition and color response that improves under stable water quality, varied feeding, and proper group size. In mature planted aquariums, the body pattern reads clearly even during fast schooling movement.

Size and Lifespan

• Adult size: 3.8 cm (1.5 inches)
• Typical lifespan: 3-5 years with stable parameters and quality diet

Ideal Aquarium Setup

This species performs best in a biologically mature aquarium that prioritizes oxygenation and stable chemistry.

• Tank size: 20 gallons (75 L)
• Temperature: 18-24 C (64-75 F)
• pH: 6.5-7.5
• Aquascape direction: open current, secure lid, and hardy planting around edges
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Behavior and Temperament

Zebra Danio is a fast, hardy, social fish with constant upper and midwater movement. Keep groups of at least 8-12 individuals so hierarchy and movement are distributed naturally. Good companion options include other active danios, small barbs, corydoras, and robust peaceful species.

Diet and Feeding

Zebra Danio is classified here as Omnivore. Build a varied schedule with high-quality staple foods, plus frozen or live options several times per week. A rotating diet supports immunity, activity, and stronger display color.

Breeding Notes

Most cyprinids in this group are egg scatterers. Conditioning with diverse foods and offering fine-leaved plants or spawning media can improve egg survival. If breeding is the goal, move adults after spawning to reduce egg predation.

Why Keep Zebra Danio in a Planted Aquarium?

Zebra Danio provides movement, contrast, and schooling structure that helps a layout feel alive without overpowering the design. For aquascaping-focused community tanks, it is a practical and visually rewarding choice.