Acestrorhynchus falcatus

About This Species

Basic Description

Also known as the Red-tailed Barracuda, this is a large, active predator from South America. Considered difficult to keep, it is a choice for experienced aquarists. The Freshwater Barracuda requires a very large tank with a secure lid, as it is a known jumper. A shoaling species, it populates the middle and upper water levels and will prey on very small tank mates.

Detailed Description

This active carnivore has a high metabolism and is best fed on alternate days with a varied diet of frozen, live, or pellet foods. Its significant waste production necessitates a robust filtration system with medium water flow to maintain quality. While a shoaling fish, it can be territorial and is often provoked by other fast-swimming species. Its predatory instincts mean any very small fish will be treated as food, so tank mates must be chosen with care to avoid conflict and predation.

Scientific Description

*Acestrorhynchus falcatus*, a characin in the family Acestrorhynchidae, has a high metabolic rate. This dictates significant oxygen consumption and a high bioload, mandating superior life support systems. The species requires stable freshwater conditions replicating its origins in South America. Captive propagation is challenging, requiring specialized environmental triggers that are difficult to simulate. Behaviorally, it is highly active with a pronounced tendency to leap from the water when startled or hunting.