All species

Neon tetra

Paracheirodon innesi

Also called neon, neons.

Keep a proper shoal. Singles hide and fade.

What it needs

Grows to
3.5 cm
Smallest sensible tank
60 L, at least 60 cm long
Temperature
20 to 26 °C
pH
5 to 7
Hardness
1 to 10 dGH
Kept in
groups of 6 or more
Temperament
peaceful
Eats
omnivore
Swims
at every level
How hard
easy
Lives
about 5 years

These are the figures the stocking advice is built on. Make a room and it will tell you whether neon tetra fit the tank you have.