The rose danio (Danio roseus) is a tropical fish of the family Danionidae. At first glance, this species resembles the pearl danio, but lacks the orange stripe on the side. It has a rosy colouration along the lower part of the fish and lower fins and gleams purple-blue in sunlight. It is also commonly known as the purple passion danio. Its natural range includes the Mekong River drainage in China, Thailand. Laos, and Myanmar.

• Maximum length: 1.25 inches 3.175 cm
• Colors: Blue, purple, silver, red
• Temperature preference 20-25 °C
• pH preference: 6 to 7
• Hardness preference: Soft to medium
• Salinity preference: Low to medium
• Compatibility: Peaceful but fast, like most danios; needs plenty of space to swim; a good "dither" fish (draws timid fish out of hiding)
• Lifespan: Typically two to three years
• Ease of keeping: Moderate
• Ease of breeding: Moderate to easy

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