Silverfish are small, wingless insects known for their silvery-grey color and fast, fish-like movement. Although they are harmless to humans in terms of biting or spreading disease, they can become a nuisance when they invade homes. They tend to hide in dark, damp areas and often go unnoticed until their numbers increase.
What Silverfish Look Like
Silverfish are usually about 1–2 cm long, with elongated, flattened bodies covered in fine scales that give them a metallic sheen. They have long antennae and three tail-like appendages at the rear of their body. Their movement is quick and wriggling, similar to a fish swimming—this is where their name comes from.
Why Silverfish Enter Homes
Silverfish are attracted to environments that are:
- Dark
- Warm
- Humid
They often enter homes in search of moisture and food sources. Common entry points include cracks in walls, gaps around windows, and poorly sealed basements or bathrooms. They are especially common in older buildings or areas with poor ventilation.
