The Longfin Serpae Tetra (Hyphessobrycon eques) is a striking freshwater fish known for its fiery red coloration and elegantly elongated fins. Native to the slow-moving waters of South America, this species is lively and active, often displaying its bold colors in schools. While they add a vibrant touch to aquariums, their semi-aggressive nature means they should be kept with care, preferably in a well-balanced community tank.