Aquarium Co-Op Coarse Sponge Filter with Easy Flow Kit

Regular price
Sale price
Regular price
Sold out
Unit price

Maximum quantity in stock reached.

Orders placed within the next 1 hour will ship today.

Help us reduce shipping waste.

Minimum Order is $19.99

Total Cart Value: $0.00

  • Air collar makes smaller bubbles for improved performance
  • Easy Flow accessory increases water circulation
  • Coarse, anti-clogging sponge
  • Weighted base sinks instantly and helps prevent floating

Sponge filters offer reliability and hassle-free operation. With no moving parts, all you need is an air pump with some airline tubing, and you've got a filter that is fully contained within your aquarium.  Sponge filters are completely reusable, don't need any replacement cartridges, and last for several years. Plus, they are gentle enough for betta fish, baby fry, shrimp, and other slow-moving species. Trusted by fish farms and wholesalers, they are an excellent choice for aquarium filtration that you can set and forget.

To optimize the sponge filter’s performance, we’ve included an air collar that replaces the need for an air stone and minimizes bubbles coming out of the side of the sponge. The air collar produces smaller bubbles that lessen noise and create more continuous current. If you need greater water circulation, use the included Easy Flow accessory that curves the uplift tube so that water flows out of the sponge filter horizontally across the water surface and around the aquarium.

The Aquarium Co-Op sponge filter is designed using coarse foam so that it can go many weeks between cleanings. The weighted base will immediately sink to the bottom of your aquarium, so no more floating up after a water change or initial installation. Also, the green plastic helps hide algae and blend in with your live aquarium plants.

Customer Reviews

Based on 2478 reviews
Stephen z. (Valley Cottage, NY, US)
Thank you

New sponge filter attachment is genius nobody does more for the fresh water fish world then you guys

Amelia G. (McAllen, TX, US)
Great for small tanks

Easy to put together for a small 5 gallon tank

Patty B.M. (Vardaman, MS, US)

I have not used my sponge filter yet. I will be glad to give a review at a later date.

Jonathan M. (Derwood, MD, US)
Nice simple filer

Great product at a value price for a simple solution to your filter needs. Nice and coarse. Good weight.

Shane O. (San Diego, CA, US)
Perfect sponge filter!

Easy to disassemble/assemble and plenty of tips and tricks from Cory online. I also love how the filter sinks and stays put! Love Cory, his crew and Aquarium COOP ❤️