DEPEPE 10pcs Aquarium Filter Bags (5pcs Black + 5pcs White) for Activated Carbon, Biospheres, Ceramic Rings, etc. Clean and Recyclable

It's expensive, there's much cheaper

Love them. I use one for phosban and one for carbon and these are great bags and reusable. Plastic zippers are nice and 0 issues using in a saltwater coral tank.

Using these for my aquarium, for pour in media these are fantastic and almost unbeatable for the price. They hold a decent amount for storage which is perfect, very easy to use and they stay clean or can be rinsed off very easily

I use them for activated carbon in the filter of my turtle tank. It's more economical than buying the ready made and does a better job because I add more than ones you buy that you have to change more often. Very little dust a I just rinse when cleaning the filter and put it back in. My tank is always clear. I have 2 very large red eared sliders so these help a lot with keeping a clean and odorless tank.

Good bags for filter medium save money over the long haul make your own fish filters