Silverfish are considered a household pest because of their destruction of property. They consume glue, paper, book bindings, photos, sugar, hair, coffee, carpet, dandruff, clothing, ear wax, tapestries, cotton, linen, silk, and even leather. Silverfish can live for more than a year without eating.
Silverfish require a relative humidity of 75% to 90%, and are found in bathrooms, basements, garages, closets, and attics.
Silverfish are nocturnal, long and flat insects between one-half and 1 inch in length. The abdomen tapers so that they have a fish-like appearance. Born whitish, they become gray and have a metallic shine as they mature. They have too small eyes, are wingless, and move in a side to side motion that resembles a fish. They live from 2 to 8 years.