Warning! If you have found this insect (silverfish) in your home, it’s a sign that you need to…see more…

Prefers warm areas (attics, near furnaces)

Long, slender antennae

Shorter, more robust antennae

Slow to moderate speed

Faster, more heat-tolerant

Both are harmless but destructive. The control methods are similar.

Frequently Asked Questions
Are silverfish harmful to my pets?

No. They don’t bite or carry diseases that affect animals. Your cat or dog might eat one, but it won’t hurt them.

Do silverfish bite humans?

No. They have no interest in biting people. They eat starches and cellulose, not blood.

Can silverfish climb walls?

Yes, they have tiny claws on their feet and can climb vertical surfaces—including walls and ceilings. But they prefer staying close to the floor.

Are silverfish a sign of a dirty house?

Not necessarily. They’re attracted to moisture and food sources, which can exist in any home. Clean homes can still have silverfish if there’s high humidity or water damage.

How long do silverfish live?

Up to 8 years. They have a remarkably long lifespan for insects.

Can I get rid of silverfish permanently?

Yes, but only by addressing the underlying conditions. Reducing moisture, removing food sources, and sealing entry points will keep them away for good.

What’s the best way to kill a silverfish?

Squish it. They’re not fast enough to escape a determined shoe. You can also catch them on sticky traps or use boric acid in cracks and crevices.

A Final, Compassionate Thought
When I saw that first silverfish scuttle across my bathroom floor, I felt like I had failed as a human. I thought it meant I was dirty, or that my apartment was falling apart.

But that’s not what silverfish mean. They’re not a moral failing. They’re just ancient survivors doing what they’ve done for 300 million years—looking for food, moisture, and shelter. They don’t care who owns the house. They just want to live.

Once I understood that, I stopped feeling grossed out and started feeling empowered. I fixed the leaky pipe. I sealed the crack behind the baseboard. I bought a dehumidifier. And after a few weeks, the silverfish were gone.