My first order from Aquarium Co-Op took over two weeks to receive so I was really hesitant to order again. I'm happy to say my second order arrived in about 48 hours!! I ordered three different sized sponges and they fit my filter intakes perfectly. I used the Mini for my Tetra 1-3g filters; Mediums for my Marineland Eclipse 6, Fluval C3, and Aqueon 10; and Larges for my Tidal 75 and Fluval 206. For my Fluval FX6, I bought a Large as recommended by a YouTube vlogger and have to figure out how to jimmy it over the massive intake!

I added this to the intake of my hang on back on a gallon aquarium and it’s added a lot of surface area for bio film and catches large debris! My shrimp love to graze on it and keeps the filter cleaner.

its literally what you need. I have it attached in my 10gallon i dont need a ton of filter for it but it does wonders to cstch everything and easy to clean as always aquairum co op is the best and will be a long time customer.

These are so much better than the ones I've been using up to this point. I'm going to replace all my pre-filters with these.

It's my filter perfectly. And also I wanted to mention. I love the fact that it was fast shipping to receive my products. Thank you, or all that you you're doing to get those products out!

This fits perfectly on a quiet flow 10. Perfect fit for a perfect price.

Dont be fooled they really mean mini but it's good and corse. Dont need to clean often

Exactly as ordered. Fantastic service. I need to order more items. Why can't all online retailers be so good? That was rhetorical no answer required.

Great coarse sponge - never clogs. Good buy.

This sponge works great, no issues. Also gives flexibility. Currently using for my fluval 207 canister filter intake. Nice and easy to clean every time. Thanks again.