Irritans Piranha

Serrasalmus irritans is distributed across headwater systems of the upper Orinoco in Venezuela and Colombia. It presents the classic deep-bodied Serrasalmus form with a pronounced predorsal hump, scattered dark spots, and a bright red iris that intensifies with age and conditioning.

As with all Serrasalmus, it is a solitary predator that requires individual housing and a diet based primarily on whole fish and crustaceans. Its headwater origin means it can tolerate a broad temperature range but favours softer, slightly acidic conditions. Importation is sporadic, making it an irregular but sought addition to specialist collections.

Always verify piranha ownership laws before purchasing.

Water: 24-28°C, pH 5.0-7.0, soft to moderately soft (1-10 dGH); headwater origin means good oxygenation is appreciated. Tank: Minimum 400L; provide root structures and rocky hiding spots; powerful external filtration; secure, heavy lid. Feeding: Whole prawns, fish fillet, lance fish; feed every 2-3 days; fasting one day per week is beneficial. Breeding: Not documented in captivity for this species. Compatibility: Solo housing mandatory; dangerous to handle; confirm legality in your region before purchase.