Emperor tetra
Nematobrycon palmeri

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.