Reed tetra

Silver body, a dark tail-base mark and elongated male fin rays

Mature males combine a dark caudal marking with elongated dorsal and pelvic rays and a broad front lobe of the anal fin. Females do not show the same fin development.

Adult length

Up to 2 cm (standard length, without the tail fin)

Water temperature

24–27 °C

pH

6–7.2

Natural habitat

Native to the Paraguay River basin.

Check that tiny fish can take the offered food and avoid fin-nipping companions. Small size does not remove the need for stable water and swimming space.