Widow Tetra

🌡️ Ideal Water Conditions

• Temperature: 17–24°C (64–75°F)
• pH Level: 6.5 – 7.5
• Hardness: 5 – 12 dGH
• Prefer moderate flow and well-oxygenated water

💡 Zebra Danios are eurythermal—meaning they can adapt to a wide range of temperatures, making them great for beginners.

🧬 Reproduction & Breeding

• Egg layers: Scatter eggs on substrate or plants
• Breeding Trigger: Slight temperature increase and soft water
• Fry hatch in ~2 days and become free-swimming in 5 days
• Use a separate breeding tank to protect eggs from adults

🍼 Zebra Danios often spawn in pairs and can lay hundreds of eggs in one session!

🎉 Fun Facts About Zebra Danios

• 🧬 Scientific Name: Danio rerio
• 🌍 Native to South Asia—India, Nepal, Bangladesh
• 🎨 Known for their horizontal black-and-white stripes
• 🧠 Used in scientific research due to genetic similarity to humans
• 🏃 Extremely active and social—great for community tanks