They keep to themselves and eat the algae off the plants and side of the tank thereby helping you to keep the tank clean, however don t add one until the tank has been established with fish for at least one month.
(They; eat; the algae) (the tank; has been established; with fish; T:for at least one month) (side of the tank; helping; you; to keep the tank clean) Context(side of the tank helping,List([61, 93))):(side of the tank; helping you to keep; the tank)
side of the tank helping,List([61, 93))
They the tank side of the tank side of the tank
eat has been established helping helping you to keep
the algae
with fish T:for at least one month
you to keep the tank clean
the tank