ALEGI 6 lbs Aquarium Ceramic Bio Filter Media Sphere for Freshwater Aquarium and Marine Fish Tank Sump, Canister Filter, Koi Ponds

Good price, good quality bio bags included

media filters better than oem filter media

Happy fish tank owner

I got the 4 pounds it comes with little mesh bags for the ceramic balls. They seem to be good quality. I do wish the balls were bigger but it is good value. Easy to use just have to wash them.

So far seems to be harboring the good bacteria necessary for good water quality

They are, as advertised, round. And they're ceramic. They work. Not sure what else to say here. How yall doin? Have a nice week? Hope so. Anyway, if you're looking for filter media...yeah, these are that. Not much else to talk about...they're ceramic beads. Can't really break, or disappoint otherwise.

I was looking for a replacement for the bio balls that came with my sponge filter but they didn't sell them separately. I went with these bio balls even though they quite bigger than the ones that came with the filter but they still fit in the filter just fine. Since putting them in, the water has been crystal clear in my betta's tank. You get a lot of bio balls in the package so they should last a very long time.

They're ceramic balls. I ordered 2 lbs and I got 2 lbs, also came with both mesh bags as expected. If you need ceramic balls, these are ceramic balls. Conveniently, both pounds of balls fit easily into one bag, so now I have a spare. How handy!