Silverfish are known for their slimy, fish-like appearance. They prefer to live in dark, damp areas, so they are most often found in basements, garages, and bathrooms. Silverfish have very destructive feeding habits. Their diet consists of carbohydrates, which can include sugary or starchy foods, soaps, books, wallpaper, and even clothing. Silverfish are the most active at night, so you may not notice an infestation until you find property damage to your home. Beware of using home remedies or traps to eliminate the pest, as these do not treat the whole infestation.