Lemon tetra

Yellow-and-black fins on a pale yellow body

The dorsal and anal fins provide the strongest yellow-and-black contrast. Colour and body depth vary with sex and condition. The orange-red trade form may be a different fish.

Adult length

Up to 4 cm (standard length, without the tail fin)

Water temperature

20–28 °C

Lifespan

About 6 years

pH

5–7.5

Hardness

1–12 dGH

Natural habitat

Native to the Tapajós River basin.

Allow group swimming space; a trade colour name alone does not settle species identity.