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Remarks: Melanotaenia duboulayi, or Crimson Spotted Rainbows, get their name from the bright red spot on the gill plate. This color is seen further down the body as it develops into line stripes on males, ending at the caudal peduncle. They are found on the eastern shore of Australia in New South Wales and Queensland. They are typically found in still or slow-moving bodies of water near floating vegetation.
The fish are omnivorous and should be fed a quality flake food with supplemental proteins such as baby brine shrimp. They require clean water but tolerate a wide variety of water parameters. By providing frequent water changes, you will be rewarded with nearly continuous spawning attempts. Melanotaenia species deposit eggs in weedy areas (often mimicked by a yarn mop) and the eggs hatch 7-10 days later. Eggs can be harvested for hatching in separate tanks to avoid predation. Most Rainbows show their best colors at sunrise, when the males display their bright fins for potential mates. Having more females than males will allow for proper color displays and avoid any unwanted aggression towards lone females.
Scientific Name: Melanotaenia duboulayi
Common Name: Crimson Spotted Rainbowfish
Max Size: 5"
Region of Origin: Oceania
Captive Bred or Wild: Captive Bred
Compatibility: Schooling fish, livebearers, rainbowfish, small catfish. Peacock Gudgeons and Panda Garra are a great choice.
Tank Mate Options:
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