Humeralis Piranha

Serrasalmus humeralis is distributed across the central Amazon and Orinoco drainages and is distinguished by a clear, rounded dark spot just behind the gill cover on the humeral region. This feature, combined with a bright red iris and scattered silver iridescence, gives it a classically attractive piranha appearance.

As a solitary predator it must be housed alone. Its moderate maximum size of around 28 cm makes it marginally more practical for advanced home aquarists than the largest Serrasalmus species. It requires soft, slightly acidic water and a varied carnivorous diet. Importation is sporadic.

Piranha laws apply; confirm local regulations before purchase.

Water: 24-28°C, pH 5.0-7.0, soft to moderately soft (1-10 dGH); slightly acidic conditions preferred for long-term health. Tank: Minimum 400L; provide root structures and a cave hiding spot; strong filtration; secure lid. Feeding: Whole prawns, fish fillet, lance fish; feed every 2-3 days; use feeding tongs. Breeding: Not documented in captivity. Compatibility: Solo housing; confirm piranha ownership laws in your jurisdiction before purchase.