Serrasalmus marginatus

Serrasalmus marginatus, commonly known as the black piranha, is one of the solitary and territorial species of the piranha family, typically not ideal for community tanks. ### Environment & Behavior: - **Solitary Behavior:** Generally prefers solitude, aggressive towards tank mates. - **Aquascaping:** Needs hiding spots with ample space for free movement. ### Feeding & Care: - **Diet:** Carnivorous. Primarily feeds on smaller fish, crustaceans, and insects in the wild. May accept fish fillets, shrimp, and appropriate-sized live prey in captivity. - **Handling:** Minimal disturbances are recommended as they can be sensitive to changes. ### Tank Requirements: - **Filtration:** Strong filtration is crucial due to the carnivorous diet, which can lead to water quality issues. - **Oxygen Levels:** Preference for well-oxygenated waters with good circulation. ### Conservation & Ethics: Ensuring wild-caught specimens are sourced sustainably is important.