Hyphessobrycon herbertaxelrodi

The black neon tetra likes clear, acidic water, and sometimes seeks out shaded areas. It will breed at 26°C in very soft water; the eggs need very dim light to hatch. Size: 4-5 cm.

• Aphyosemion australe
• Phenacogrammus interruptus
• Tilapia buttikoferi
• Papiliochromis ramirezi
• Pristella maxillaris