All species

Guppy

Poecilia reticulata

Also called guppies, guppie.

Breeds constantly. Keep more females than males or the males harass them.

What it needs

Grows to
4 cm
Smallest sensible tank
55 L, at least 50 cm long
Temperature
22 to 28 °C
pH
6.8 to 8
Hardness
8 to 25 dGH
Kept in
groups of 3 or more
Temperament
peaceful
Eats
omnivore
Swims
at every level
How hard
easy
Lives
about 2 years

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