Bio-sponge Filter Small to Medium
Our round 2 inch high by 4.75 inch wide sponge filter complete with weighted base and tube to hold the airline will help keep ammonia down in aquariums up to 40 gallons. This is a great option for small to mid-size aquariums. Used with an external air pump and connected with airline tubing, sponge filters provide the simplest means of biofiltration for an aquarium. Just keep rinsing every few weeks.
| Dimensions | 2 inch high × 4.75 inch wide |
|---|---|
| Includes | Weighted base, airline tube |
| Compatible With | External air pump |
| Best For | Aquariums up to 40 gallons |
FAQ
What size aquarium is this filter suitable for?
This filter is suitable for small to mid-size aquariums up to 40 gallons.
Does the filter come with everything needed for setup?
Yes, it comes with a weighted base and airline tube to connect with an external air pump.
How often should the sponge filter be cleaned?
It should be rinsed every few weeks to maintain performance.
Christopher Stewart –
Easy to install and works well in my 30-gallon tank. The water flow is gentle and keeps the water clean without disturbing the fish. I rinse it every 3 weeks and it still performs well.
Una Gray –
Good for a small tank. The filter holds water well and helps reduce ammonia. I had to adjust the airline connection slightly, but it’s simple to fix.
Samantha Glover –
Perfect for my community tank. It’s quiet, effective, and the sponge stays clean after rinsing. No clogging issues even after a few months of use.