All species

Assassin snail

Clea helena

Also called bumblebee snail, clea.

Eats pest snails, then breeds slowly into a pest of its own. Worth it.

What it needs

Grows to
2.5 cm
Smallest sensible tank
20 L, at least 30 cm long
Temperature
22 to 27 °C
pH
7 to 8
Hardness
6 to 20 dGH
Kept in
ones or pairs
Temperament
peaceful
Eats
other snails
Swims
near the bottom
How hard
easy
Lives
about 3 years

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