Sign-in to Account
Call Us

(855) 948-5816

aptive-registered-logo-white

Find Service Area

Silverfish in My Bathroom: What Attracts Them and How to Get Rid of Them

Written by Aptive Environmental July 24, 2024

Discovering silverfish in bathroom areas can be an unsettling experience. These small, wingless insects are not just a nuisance but can also indicate underlying moisture problems in your home. 

Keep on reading to learn what attracts silverfish to bathrooms, the risks they pose, and effective methods to get rid of them for good. 

What Are Silverfish? 

Silverfish are small, teardrop-shaped insects, typically about half an inch in length. They are known for their silvery-gray and metallic appearance and their fish-like movements. 

Thriving in dark, damp environments, silverfish are commonly found in bathrooms, basements, and kitchens, where humidity levels are higher. 

The Lifecycle and Behavior of Silverfish 

Understanding silverfish lifecycle and behavior is crucial for effectively managing an infestation. 

Lifecycle of Silverfish 

Silverfish undergo a unique development process known as gradual metamorphosis, which differs from the complete metamorphosis of many other insects. 

This lifecycle includes three stages: egg, nymph, and adult. 

  • Egg: Silverfish eggs are oval and whitish, often laid in small groups in cracks or crevices within moist areas. Depending on environmental conditions, eggs typically hatch within two to eight weeks. 
  • Nymph: The nymph stage resembles a smaller version of the adult but without reproductive capabilities. Nymphs undergo several molts, shedding their exoskeleton as they grow. This stage can last anywhere from three months to three years, heavily influenced by environmental conditions. 
  • Adult: Once silverfish reach adulthood, they are capable of reproducing. Adult silverfish can live for up to three years, continually reproducing during this time. Females can lay over 100 eggs throughout their lifetime, contributing to the potential for rapid population growth if conditions are favorable. 

Behavior of Silverfish 

Here’s what you need to know about silverfish behavior: 

  • Nocturnal Activity: Silverfish are primarily nocturnal and are most active at night. During the day, they hide in dark, moist areas such as behind bathroom tiles, under sinks, or in wall voids.
  • Moisture Seeking: Silverfish constantly seek out moisture, which is necessary for their survival. This behavior explains their common presence in bathrooms and other humid parts of a home. 
  • Diet: They feed on carbohydrates, particularly sugars and starches. Common dietary sources include glue in books, linen, silk, and even dead insects. This varied diet allows them to thrive in diverse environments. 

What Attracts Silverfish to My Bathroom? 

Silverfish are drawn to moist environments. A bathroom’s humidity, often exacerbated by lack of ventilation and persistent dampness, creates an ideal breeding ground for these pests. 

Additionally, silverfish feed on starch-rich substances and cellulose, which include: 

  • Shampoo and soap residues 
  • Toilet paper 
  • Cardboard boxes 
  • Linen and cotton towels 

Reducing moisture and decluttering areas where these items are stored can significantly decrease silverfish appeal. 

What Are the Risks of Silverfish? 

While silverfish do not transmit diseases, their presence can lead to several issues: 

  • Damage to Personal Items: They can ruin books, wallpapers, photos, and clothing. 
  • Allergic Reactions: For some individuals, silverfish can trigger allergies due to their molted skins and feces. 
  • Indicators of Moisture Problems: A silverfish infestation might also signal more serious issues like mold growth and structural damage due to excess moisture. 

How Do I Get Rid of Silverfish? 

Eliminating silverfish requires a combination of humidity control, housekeeping, and chemical treatments. 

  • Reduce Humidity: Use dehumidifiers and exhaust fans to keep bathroom humidity levels below 50%. 
  • Seal Cracks and Crevices: Check around pipes and walls, and seal any gaps where silverfish might enter or nest. 
  • Do Regular Cleaning: Vacuum regularly to remove food particles and potential nesting materials. 
  • Use Insecticidal Dusts: Apply diatomaceous earth or boric acid—which is safe for humans but lethal to silverfish—in hidden areas, such as under the sink and behind the toilet. 

How Pest Control for Silverfish Can Help 

If DIY methods fail to control the infestation, professional pest control for silverfish may be necessary. Pest control experts can offer more specialized and potent treatments, including: 

  • Targeted Insecticides: Professionals use more effective and longer-lasting insecticides than over-the-counter options. 
  • Customized Solutions: To create a tailored approach, they will assess the infestation and your home’s layout. 
  • Preventive Advice: Technicians can also provide recommendations to prevent future infestations. 

Living with silverfish in your bathroom can be distressing, but taking the right steps can help manage and eventually eliminate the problem. If you’re dealing with a persistent issue, contact us at Aptive. Our experts are here to provide effective solutions and peace of mind. 

Related articles

Learn more about your pests

Curated articles for you, from our pest experts.

Close-Up Of A Black Ant On A Green Leaf With Water Droplets.

Pest Control: The Lifecycle of Pests

Pests are a nuisance to homeowners, and can cause a lot of damage to property, as well as health risks to humans and pets. To effectively control pests, it is important to understand their lifecycle and behavior. In this article, we will explore the lifecycle of...

Feb 17, 2023
228 Day 1 Service Pro Standard Services Aptive 2021

The Importance of Regular Pest Inspections for Home Maintenance

Owning a home is a source of pride, but it also comes with the responsibility of ongoing maintenance. While tasks like fixing a leaky faucet might come to mind, don't overlook the crucial role of regular pest inspections offered by professional pest control...

Jul 23, 2024
Bright And Modern Kitchen With White Cabinets, A Large Central Island With Wooden Stools, And Stainless Steel Appliances. The Room Is Decorated With Fresh Plants And Natural Light Floods In Through Large Windows, Creating A Welcoming And Airy Atmosphere.

How to Inspect Your Home for Pest Entry Points

Your doors may always be open to friends and family, but when it comes to insects, wildlife, and other creepy crawly things, the house is off-limits. Inspect your home for pest entry points to keep the good life inside and intruders out. Cracks and crevices in the...

Jun 25, 2024
A Variety Of Pumpkins And Gourds In Different Shapes, Sizes, And Colors Are Arranged On The Steps Of A Front Porch. The Steps Are Terracotta-Colored, And The Porch Is Flanked By Green Leafy Plants.

How to Keep Pumpkins from Rotting

Nothing says fall like newly-picked pumpkins and jack-o-lanterns. These festive vegetables provide the perfect front door decor and after-school activity for kids. Unfortunately for homeowners, though, carved pumpkins will often last between just one to two weeks...

May 8, 2024
An Aptive Pest Control Specialist Waves To Two Children From Outside A House Window, With An Aptive Van Parked In The Background. The Children Are Sitting At A Table Inside, One Waving Back While The Other Is Drawing.

3 Reasons Why You Should Have Pest Control

It’s easy to recognize the need for pest control when we find a wasp nest next to the front door, or when a roach scuttles across the kitchen floor, but some issues may not be as visible. Sometimes a single ant on a countertop or a tick crawling up a pant leg can...

Feb 20, 2024
A Close-Up Of Two Mating Black And Orange Lovebugs On A Green Plant With Small White Flowers, Set Against A Blurred Green Background.

Lovebugs: Facts, Identification, and How to Treat Them

Lovebugs: these small insects may seem harmless, but they can quickly become a nuisance in the southeastern United States. With their unique mating behavior and rapid reproduction, lovebugs can swarm in large numbers during certain times of the year. But what...

Feb 12, 2024
A Close-Up Of A Norway Rat Eating Food Scraps From A Dirty Plate In A Cluttered Kitchen Sink.

The Rodent Riddle: A Guide to Rat Control and Identification

In the corners of homes and urban landscapes, rats lurk as stealthy intruders, capable of causing damage and spreading disease. Recognizing the signs of a rat infestation and understanding effective control measures are crucial for maintaining a more pest protected...

Feb 5, 2024
A Close-Up Of A Deer Mouse Sitting On Green Moss With A Blurred Leafy Background.

How to Treat Mice in the Home

Mice, those elusive yet troublesome creatures, have a knack for infiltrating our living spaces and turning a minor annoyance into a full-blown infestation. Understanding their characteristics and behavior is pivotal in effectively controlling these invaders....

Jan 29, 2024
Close-Up Of A Yellow Jacket Wasp With A Black Body And Yellow Markings, Perched On A Small, Gray, Hexagonal Paper Nest.

Understanding and Controlling Paper Wasps

In the intricate tapestry of nature, paper wasps play a crucial role, contributing to the balance of ecosystems by preying on various pests. However, when these buzzing architects decide to build their intricate nests in and around our homes, they can quickly turn from fascinating insects to potential pests.

Jan 8, 2024
A Cozy Living Room Interior With A Light Beige Sofa Adorned With Various Pillows, A Wooden Coffee Table With Decorative Vases, And Large Windows Showcasing A Snowy Outdoor Scene With Trees Covered In Snow.

Why You Need Pest Control in the Winter

https://www.youtube.com/watch?v=ZRp9paEHIWs As the days grow shorter and the temperatures drop, many people tend to believe that pests die off during winter. Unfortunately, this is far from the truth. In fact, winter can be a time of heightened pest movement as...

Dec 4, 2023
A Heat Map Of The United States Showing Pest Activity Levels Across Various Regions From March 10, 2021, To April 28, 2021, With Higher Activity Indicated By Brighter Colors.

Data, Patterns, and Pest Control

As a leading pest control provider, Aptive service professionals encounter all kinds of pest activity across the country. Our ability to monitor this pest activity has provided valuable insights into understanding the prevalence of specific pest types at different...

Aug 1, 2023

Take back your home with pest control today.