Actual Size: 13 – 30mm

Characteristics: Silver, blue, or light gray. They do not have wings, and have distinct antennae.


  • Silverfish are nocturnal, and will avoid light.
  • They are known for their wiggling movement, resembling the way a fish moves.
  • Silverfish prefer sugary substances and carbohydrates. They will also eat drywall.
  • They prefer damp, dark areas with high humidity.
  • Silverfish can be found in basements, bathrooms, and attics.

Silverfish Habits

Silverfish are extremely fast runners, moving in a fish-like pattern over horizontal surfaces. Eating mostly carbohydrate-based food sources, they will also eat cellulose, photos, plaster, glue, dandruff, hair, clothing, coffee, fabrics, and dead insects. These insects can live a year or more without eating and on top of that, can reproduce quickly, producing 30 – 60 eggs at a time.

Problems With Silverfish

These ancient insects can become a serious pest problem because they can eat a wide variety of food, materials, household items, and clothing. If one silverfish is discovered, there are most likely many more in hiding. However, once an infestation exists, all potential hiding places must be removed and destroyed to prevent any even bigger infestation. Hardy scavengers, these insects have the ability to survive and hide in seemingly impenetrable spaces.

Prevention of Silverfish

Proper cleaning of homes and businesses can reduce the chance of a silverfish infestation. To prevent these pests, reduce clutter, sweep or vacuum regularly, and store food in containers with tight-fitting lids. Silverfish will infest any indoor or outdoor area that has been abandoned or remains neglected. They will live anywhere near a food source.

Eliminating Silverfish

Silverfish eat a wide variety of food, and they can cause serious damage to homes and belongings. Professional pest control is the best approach to eliminating and preventing future problems with silverfish. An organized, expert approach is the most appropriate means of stopping a silverfish infestation.