🐟 Blue Rainbowfish (Melanotaenia lacustris)
Freshwater Rainbowfish • Fast Schooling Species • Peaceful Community Fish • Mid–Top Swimmer
 
📋 The Blue Rainbowfish (Melanotaenia lacustris), also known as the Lake Kutubu Rainbow, is admired for its metallic sky-blue coloration, deep body shape, and shimmering scales that intensify with age and good water quality. When kept in groups, males display impressive color flashes during mild social displays.
This species is a fast-moving, active schooling fish that thrives in spacious aquariums with clean, well-oxygenated water. Peaceful and social, Blue Rainbowfish make excellent additions to community tanks, especially with other rainbowfish species, barbs, gouramis, and similar-sized peaceful fish.
Its vibrant coloration, energetic schooling behavior, and adaptable nature make the Blue Rainbowfish a standout peaceful community fish for display aquariums.
 
💡 Highlights
✨ Intense Blue Coloration: Metallic sky-blue body that glows under good lighting
⚪ Active Schooling Fish: Best kept in groups of 6 or more
📏 Peaceful Community Species: Ideal for mixed freshwater setups
✅ Captive-Bred Variety: Hardy and widely available
🐟Mid–Top Swimming Level: Active movement adds tank dynamism