Silverfish consume matter that contains starch or
polysaccharides, such as
dextrin in
adhesives. These include
glue, book bindings,
paper,
photos,
sugar,
hair, and
dandruff. Silverfish can also cause damage to books,
tapestries, and
textiles. Silverfish will commonly graze in and around showers, baths, and sinks on the
cellulose present in many shampoos, shaving foams and so on. Apart from these cases, the damage caused by silverfish is negligible and they have no direct effect on human health. Other substances that may be eaten include
cotton,
linen,
silk and synthetic fibers, and dead insects or even its own
exuvia (
moulted exoskeleton). During famine, a silverfish may even attack
leatherware and synthetic fabrics. In extreme cases, silverfish may live for one year without eating.
[2] Silverfish can be found anywhere in office areas and homes including, but not limited to, bathrooms, garages, closets, underneath beds, couches, and in electrical appliances where food can be found, such as computer keyboards. They generally prefer dark areas.