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The Serpae Tetra (Hyphessobrycon eques) is a vibrant and energetic freshwater fish, highly popular among aquarists for its striking appearance and lively nature. Originating from the Amazon basin in South America, these small tetras typically reach about 1.5 to 2 inches (3.8-5 cm) in length. Their most distinguishing feature is their brilliant, deep red to orangish-red coloration, often accented by a prominent black comma-shaped spot or vertical bar behind the gill plate. Many individuals also display attractive black markings on their dorsal fin, sometimes edged with white or yellow, adding to their allure. While undeniably beautiful, the Serpae Tetra is known for its somewhat feisty and semi-aggressive temperament. They are notorious fin-nippers, especially when kept in insufficient numbers or with incompatible tankmates. For this reason, they thrive best in a species-specific tank or a well-chosen community setup with other robust, fast-moving fish that can hold their own. Avoid keeping them with slow-moving, long-finned, or very docile species. Serpae Tetras are schooling fish and should always be kept in groups of at least 6-10 individuals; a larger school not only makes them feel more secure but also helps to diffuse their aggression, often redirecting it towards each other rather than other tank inhabitants. An ideal setup for Serpae Tetras includes a minimum 20-gallon (75-liter) tank, heavily planted with plenty of open swimming space. They appreciate a dark substrate, which helps to enhance their vibrant colors, along with driftwood and rocks to provide hiding spots and enrichment. Water parameters should be soft to moderately hard, with a pH between 5.0 and 7.5, and a temperature range of 72-79°F (22-26°C). As omnivores, their diet should consist of high-quality flake or pellet food, supplemented with frozen or live foods like brine shrimp, daphnia, and bloodworms to ensure optimal health and coloration. With proper care and suitable tankmates, Serpae Tetras can be a captivating and dynamic addition to the experienced aquarist's collection.

Notorious fin-nipper; keep in large schools (8+) to reduce aggression.