Rivulus cylindraceus

The female of the Cuban rivulus is arger than the male and can also be distinguished by the black patch bordered with white on her caudal fin. The eggs (3 mm) incubate in around 15 days. There are no particular requirements for water quality. Size: 7-8 cm.

• Serrasalmus nattereri (Serrasalmidae)
• Acanthodoras spinossimus
• Aphyosemion bivittatum
• Metynnis argenteus (Serrasalmidae)
• Aequidens pulcher