What Does a Rock Louse Eat?
Rock lice, also known as pillbugs or roly-polies, are actually isopods, a type of crustacean. They are decomposers, which means they eat decaying plant matter.
Examples include:
Dead leaves
Rotting wood
Fruit and vegetable scraps
Fungi
They also sometimes eat algae and lichens. Rock lice are important for the ecosystem because they break down dead plant matter, returning nutrients to the soil.