Steatocranus casuarius

The bellicose lionhead cichlid or African blockhead has its home in fast-flowing, turbid waters. The characteristic protuberance on its forehead is larger in the male. The female lays 100-200 eggs in a hollow, which both parents will guard. Size: 10 cm.

• Cynolebias bellottii
• The bubble-eye
• Hyphessobrycon pulchripinnis
• Aphyosemion marmoratum
• Macropodus opercularis