Xiphophorus montezumae

This is the Montezuma swordtail. Most swordtails - the specimen illustrated here is a feral variety - have shorter "swords" than X. helleri. They are rarely sold commercially. Size: 5 cm.

• Corydoras arcuatus
• Labeo frenatus
• Pseudotropheus tropheops
• Pelvicachromis pulcher
• Colisa sota