Melanotaenia fluviatilis

The Melanotaenia fluviatilis, or Australian Rainbowfish, is renowned for its vibrant colors and active swimming behavior. It's a popular species for community aquariums thanks to its peaceful nature. To thrive, they require a well-maintained tank with plenty of swimming space and a tight-fitting lid, as they are known for jumping. They appreciate a tank heavily planted along the sides and back, with open swimming areas in the front.