Feedbook/Fish

Emperor tetra

Nematobrycon palmeri

Emperor tetra side portrait: black horizontal stripe, yellow eye, male's tail fin with extended central rays

Essential gear

  • 45 cm+ long tank
  • Thermometer
  • Water-change hose
  • Hand net
  • Filter
  • Heater

Lifespan

5–8years

Water temperature

23–27°C

pH

5.5–7.5

Water column

Mid-water

Schools along plant edges

Keep in groups

8+ fish

Small groups scatter and are less active

Diet

Omnivore

Micro pellets, crumbled flakes, brine shrimp

Suggested habitat

Aim for a long tank of at least 450 × 300 × 300 mm. Foreground plants or moss give an edge swim path; male's long tail looks most elegant against dark backgrounds.

Plates are husbandry references—not build plans or generator parameters. Check your own water, vessel, and stocking before you act.