Serrasalmus spilopleura is a rare Piranha with several common names. The fish is a model definition of fin-nipper; any S.spilopleura trusted with other fishes will surely make a meal of their fins and scales. This species is said to be less aggressive than S.nattereri and S.rhombeus.

Tank Setup

If you are fortunate enough to purchase one of these gems, keep it alone. Unlike other Piranha species, S.spilopleura is a loner and will attack even its own kind. The aquarium must be large and provided with many caves and hiding places. A powerful filtration system is required.

Feeding

These Piranhas are carnivorous and must be fed accordingly. Chunks of beef heart are relished, as are earthworms and most other types of meat.

Water Chemistry

S.spilopleura will tolerate a wide range of water conditions in the aquarium. An acidic pH of 6.2-6.8 is appreciated, along with a general hardness range of 5-20 dH.

Breeding

Breeding has been accomplished in such public aquariums as the Duisburg Aquarium in Germany and the Cincinnati Zoo. Reports say the fish spawn among roots of plants, the eggs hatching just days later. Just over a week later the fry become free-swimming and can be fed newly-hatched brine shrimp.