Thayeria boehlkei

Boehlke's penguin swims obliquely, head uppermost. It prefers dark water and diffused light. Breeding is uncomplicated; the female lays around 1,000 eggs. Size: 4-5 cm.

• Pseudotropheus zebra
• Balantiocheilus melanopterus
• Capoeta semifasciolatus
• Gnathonemus petersii
• Megalamphodus megalopterus