PowkooAquarium Filter Sponge, Bio Sponge Filter Media Pad, Cut-to-Size Foam for Aquarium Fish Tank Pond

It's a good size piece and will make more than one filter

Just want I was hoping for. Easy to cut to size with scissors for some DIY filters. Water flows throw well.

The material is well constructed. And After using it for several months it is holding up nicely in my biological filter.

Used for a tank divider works great

Customer support was absolutely amazing. I ordered a ring that was slightly too big. I contacted the support, within hours I was contacted and a new set was sent. I was told not even to return the original and give it to someone who could use it.I don’t like wedding rings because I work a lot with my hands. These are super comfortable and I I wear it all the time now. Don’t even know I have it on.

This sponge came exactly as described. Surprisingly really good quality and seems like it will last a long time. Bigger than anticipated and surpassed my expectations. Seller sent product right away and everything arrived in great condition. Using this for a smaller indoor pond for multiple koi. I felt weird spending $32 on a sponge but very glad I did. I will buy more as I get more tanks set up. Thanks!

I didn't use it as fish tank filter but as dust filter. The openness in the foam is similar to the one I had to replace. I find it brittle, would have liked if it had been more rubbery.

Absolutely amazing!! Highly recommended to replace those awful petsmart cartridges. Stop wasting money on those. These last way longer and they make water conditions better overall.

Big and really easy to cut down to the dimensions I wanted. Plus the surplus I had I’ve used for extra surface area for my shrimps. Over all I love this product and highly recommend for filters, extra surface area or even to divide a tank.