Goldiei Dekai Rainbow fish
Available now
đ Goldiei Dekai Rainbow Fish (Melanotaenia goldiei)
It doesnât just shimmer â it ignites.
The Goldiei Dekai Rainbow doesnât glide through a tank⌠it streaks across it. Electric yellows, molten oranges, and that razorâclean metallic flash give this fish a look that feels charged, not painted. When the school turns, the whole upper body fires off like a band of neon sparks â a moving ribbon of heat that refuses to blend in.
Males push even harder with age, throwing deeper saturation and tighter formation, turning every pass into a coordinated strike of color and speed. These arenât soft, pastel rainbows. These are live wires.
At Uncle Joeâs Fish Shed, we donât deal in washedâout, massârun rainbows. We work with tiny, handâselected batches from Florida breeders who actually care about shape, strength, and fire. No factory fish. No dull lines. Just limited, boutiqueâquality rainbows chosen for intensity, motion, and attitude.
Limited runs only â because real color isnât produced. Itâs curated.
Species Care
đ§ Water
Temp: 74â80°F pH: 6.5â7.5 GH: 6â12 KH: 3â8
Clean, oxygenârich water keeps color sharp and energy high. Stability matters more than chasing exact numbers.
đĄ Tank
40g+ recommended for a proper group Keep 8+ to spread energy and prevent nipping Open swimming lanes with plants/hardscape pushed to the edges Moderate flow + strong filtration to keep them moving
đ˝ď¸ Food
Highâquality flakes or microâpellets Frozen/live: brine shrimp, daphnia, bloodworms Offer small portions 2â3Ă daily Color and stamina improve with a varied diet
đ§Ź Behavior
Fast, active schoolers Semiâboisterous but not aggressive when kept in groups Great with other quick, confident fish Avoid slow or longâfin species that canât keep pace
đŁ Breeding
Egg scatterers Use marbles, spawning mops, or dense plants Cooler water changes + heavy feeding help trigger spawning Remove adults if you want fry survival