Aqueon Silicone 3-oz Aquarium Sealant, Clear

$8.99 (-31%) Chewy Price
$12.99 List Price
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About This Item

Details

  • Made with 100% silicone, this high-strength sealant has the same strength as the silicone used to manufacture new aquariums
  • Creates a waterproof seal to stop tank leaks safely and effectively
  • It’s easy to apply and non-toxic, so it’s safe for freshwater and saltwater aquariums
  • The long-lasting bonding power creates a permanent seal that stays flexible so it won’t crack or shrink
  • Powerful and easy to apply

Instructions

Learn More About Aqueon From Our Team of Experts

Aquarium Care Made Easy

Aqueon’s line of aquarium maintenance products offers everything you need to keep your tank clean, healthy, and thriving. From siphon vacuums to gravel cleaners and cleaning magnets, these essential tools make aquarium care easier than ever.

All About the Fish

Aqueon strives to do what’s best for the health and well-being of fish and aquatic life. They focus on the little things that make your life easier when keeping an aquarium, so it’s easier to keep your fish happy and healthy.

Enhance Your Cleaning Routine

Aqueon’s Aquarium Siphon Vacuum Gravel Cleaner and Water Changer are two essential cleaning tools designed to make routine maintenance efficient and stress-free. Available in a range of sizes to accommodate different aquariums.

Tackle Algae Buildup

Another must-have aquarium tool is the Aqueon Algae Cleaning Magnet. This magnetic cleaner is designed to gently scrub off algae without scratching the glass or acrylic. It works from the outside, so you can clean without even getting your hands wet.

About Aqueon

Developed by Aquatic hobbyists, Aqueon provides a broad array of aquarium solutions to help maintain healthy aquatic environments.

Shop Aqueon

Questions & Answers

8 Customer Questions


do I have to remove the old sealant? before I put the new sealant on it

Answer by ChewySep 14, 2020
It is recommended to apply this sealant to a clean surface.

can u apply with tank already filled

Answer by ChewyMar 10, 2021
This sealant cannot be applied to a filled tank.

Can it bond PVC plastic pipe?

Answer by ChewyJan 15, 2018
This product is recommended for use with aquarium glass only.

How long does this take to cure before you can put water in the tank?

Answer by ChewyOct 17, 2018
To ensure a leak-proof seal, allow at last 48 hours before filling the aquarium with water.

4.5
Rated 4.5 out of 5 stars
65 Ratings

22 Customer Reviews



Rated 1 out of 5 stars
By Cynthia on Aug 28, 2025

It went everywhere

The tube wasn't crimped properly, so as I was happily using it to seal a terrarium, it ended up all over my arm.

The tube wasn't crimped properly, so as I was happily using it to seal a terrarium, it ended up all over my arm.


Rated 5 out of 5 stars
By cathy on Sep 16, 2025

Making it so easy to build things for ur aquarium

I build rock houses and landscaping for my large 6 foot aquarium. This silicone makes that so easy

I build rock houses and landscaping for my large 6 foot aquarium. This silicone makes that so easy


Rated 5 out of 5 stars
By Megan on Mar 20, 2025

Easy

My tank had sprung a leak and this silicone came before it was expected to. It was easy to use and has held up nicely.

My tank had sprung a leak and this silicone came before it was expected to. It was easy to use and has held up nicely.


Rated 5 out of 5 stars
By kathy on Jun 27, 2025

Good product

Works well to seal aquarium needs.

Works well to seal aquarium needs.


Rated 1 out of 5 stars
By Mollie on Feb 23, 2025

Bottom exploded

Bottom of tube exploded open when using.

Bottom of tube exploded open when using.


Rated 2 out of 5 stars
By Kristin on Oct 11, 2024

Not the greatest

Kind of doubles back as it seals and leaves holes that you have to go over and shrinks up a bit

Kind of doubles back as it seals and leaves holes that you have to go over and shrinks up a bit


Rated 5 out of 5 stars
By Robert on Aug 29, 2024

All the items. Are great and the great service and delivery

All the great service chewy is the best thank you

All the great service chewy is the best thank you


Rated 5 out of 5 stars
By samantha on Mar 3, 2024

good silicone

It’s your standard silicone. Gets the job done how you would expect it to.

It’s your standard silicone. Gets the job done how you would expect it to.


Rated 3 out of 5 stars
By Sierra on Oct 6, 2023

It works, but be careful

I used this to seal a new terrarium and it worked perfect until the back end exploded and my hands were completely covered in silicone. That happened halfway of

I used this to seal a new terrarium and it worked perfect until the back end exploded and my hands were completely covered in silicone. That happened halfway of sealing and I was able to finish sealing. Took a long time to get it off my hands but I did it. Overall it did what it was meant to do but the bottle was not strong enough.


Rated 3 out of 5 stars
By Dan on Dec 13, 2023

Sealant

Well, I’m not sure I don’t need a new aquarium.

Well, I’m not sure I don’t need a new aquarium.