Quick Overview The Emerald Dwarf Rasbora (Danio erythromicron, sometimes also scientifically listed as Celestichthys erythromicron) is a breathtaking nano fish endemic to Lake Inle in Myanmar. Known for their striking pattern of vertical emerald-green bars and bright orange-red fins, these tiny fish max out at barely over an inch in length. Closely related to the famous Celestial Pearl Danio, they share a similarly shy but peaceful temperament, making them absolute gems for dedicated nano aquascape enthusiasts.
Tank Requirements & Local Care Tips
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Care Level: Intermediate
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Minimum Tank Size: 10 Gallons (Must be kept in schools of at least 6 to reduce shyness)
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Water Temperature: 21°C to 25°C
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Temperament: Peaceful but shy (Ideal for planted setups with dwarf shrimp and other tiny, docile fish)
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Bacolod Hobbyist Tip: Because they naturally come from a slightly cooler, higher-altitude lake, the Emerald Dwarf Rasbora prefers temperatures that do not get too hot. In Bacolod’s warmer climate, keeping your tank in a well-ventilated or air-conditioned room away from direct sunlight is ideal. They also require dense vegetation to feel secure enough to venture out and display their best colors. Visit our shop for the best live aquarium plants, aquarium cooling fans, and high-quality micro-pellets perfectly sized for their tiny mouths!
