Person's hand holding someLive Aquarium Plants

Plants

Person's hand holding someAquarium Fish Food

Fish Supplies

Person's hand holding someEquipment

Aquarium Supplies

Person's hand holding someWater Care

Aquarium Care

Person's hand holding someMerch

Gifts & Gear

An Airstone That Works All the Time

aquarium-co-op-weighted-air-stone-4515402
aquarium-co-op-weighted-air-stone-2875268
aquarium-co-op-weighted-air-stone-9056760
aquarium-co-op-weighted-air-stone-5517770
aquarium-co-op-weighted-air-stone-5799257

Aquarium Co-Op Weighted Air Stone

$4.99
$4.99
Sold out

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Venmo
  • Visa
  • Weighted to sink
  • Modular height
  • Easy to clean

Keep your aquarium well-oxygenated by using an air stone with your air pump. An air stone is used to diffuse the air into smaller bubbles that agitate the water surface and increase oxygen levels. We built our weighted air stones with little, modular discs that can be snapped together or removed to create the perfect size. Plus, its small diameter is perfect for fitting inside common air-driven devices, like sponge filters.

Aquarium Co - Op Black Airline Tubing - Aquarium Co - Op
1

Add Airline Tubing

Our food-grade PVC Black Airline Tubing fits the weighted air stone perfectly, and blends in with dark backgrounds. It stays flexible for longer, and is easy to install on any air accessory.

2

Add Another Air Stone

If you want to run more than one air stone, adding a T Airline Splitter and an Air Valve for each line can allow you to utilize both air stones that come in this package on a single air output.

T Airline Splitters - Aquarium Co - Op
Scratch and Dent Aquarium Co - Op Air Pump with Battery Backup - Aquarium Co - Op
3

An Air Pump With Peace of Mind

Power your air stones with an Air Pump With Battery Backup and protect your aquarium against low oxygen levels in the event of a power outage. These pumps will automatically turn on with the loss of power, making them the perfect layer of protection for filtration that relies on electricity and may not be self-priming.

Aquarium Co - Op Weighted Air Stone - Aquarium Co - Op

Aquarium Co-Op Weighted Air Stone

$4.99
$4.99
Sold out

Customer Reviews

Based on 195 reviews
87%
(169)
9%
(17)
3%
(6)
1%
(2)
1%
(1)
D
David

Good

C
Caitlin B. (Duluth, MN, US)
Obviously Yes

I have the sponge filters and already liked that the system itself is weighted. These small things being weighted is the change that makes my life more simple! Also the colors great! Thanks for making the small things better!

R
Rob T. (Ashburn, VA, US)
Nice quality aeration

Switched all my under gravel filters to using these. They fit perfectly and provide a great stream of air with no clogging.

A
Anonymous (Portland, OR, US)
My Cory’s love them

Love this easy to set up and my Cory’s are having a blast playing in the bubbles.

Reviewer avatar
Fishroomfever (Knoxville, TN, US)

Weighted and adjustable, gotta love em!

Load More

Frequently Asked Questions

Shipping Policy

We process and ship out 98%+ of our shipments next business day. 

Live plants will ship using an appropriate service and typically arrive in 2 to 5 business days. Transit times do not include weekends, holidays, or weather delays. To avoid delays in the shipping network we recommend ordering live plants on Saturdays and Sundays for a Monday ship out.

Dry goods such as fish food, medication, filtration products, etc. can be ordered any day and will ship the next business day with an appropriate service. Typical shipping times are 1 to 7 business day transit time, depending on delivery location. 

Faster shipping options available at checkout for an additional charge.

Alaska and Hawaii have a $17.99 surcharge. We do not ship to Puerto Rico currently.

90 Day Return Policy

90 Day Return Policy

At Aquarium Co-Op, our goal is to have satisfied customers. We make every effort to inform our customers about how our products work, and what is 
to be expected. We recognize that sometimes a product may not completely
 meet the expectations of a customer. We take pride in having a 
no-hassle 90 day return policy. If you have purchased an item and are not 
satisfied, we will take it back.

To start a return, email our customer service team at shipping@aquariumcoop.com. Please note that the shipping cost of returning an item is not covered by Aquarium Co-Op.


Items being returned may be sent to:
Aquarium Co-Op
Shipping Team
800 Enterprise Dr.
Lexington, KY 40510 

Still Have Questions? Contact Us

Email: Shipping@aquariumcoop.com

Contact form: https://www.aquariumcoop.com/pages/contact-us

Visit our physical store:
Aquarium Co-Op
9661 Firdale Ave
Edmonds, Wa 98020

Send mail to our Warehouse:
Aquarium Co-Op Warehouse
800 Enterprise Drive
Lexington Ky, 40510