Metynnis argenteus (Serrasalmidae)

The silver dollar closely resembles the piranha, but it is herbivorous, needing large supplements of vegetable material; without these, it will nibble away the vegetation. Size: 10-15 cm.

• Scatophagus argus
• Pristella maxillaris
• Gyrinocheilus aymonieri
• Nematobrycon palmeri
• Botia modesta