Gnathonemus petersii

Peters's elephantnose uses its "trunk" to sift the substrate for food, preferably in darkness, as it is rather timid. The elephant-nose can emit weak - and quite harmless - electrical discharges. Size: 15-20 cm.

• Serrasalmus nattereri (Serrasalmidae)
• Telmatherina ladigesi
• Hyphessobrycon callistus
• Melanochromis crabo
• Hemigrammus caudovittatus