Tetra 26218 Medium 5-15 Carbon Filter Cartridges (2 Boxes of 3-Filters)

Great for my fishes

Happy with product but compared to some other brands, is quite expensive. Wish there were some generic alternatives

the fact i have 2 packs of filters make so easy not to have keep watching how many you have left before having to shop again love the twin pack smart move.

WARNING: I put this in Saturday at 10 pm and Sunday at 8am all 8 of my fish were dead! Amazon won’t do a thing I am so angry!

Works as advertised

These are the bio bags which are different from the product number and description on this listing. Returning now.

Easy to use and fish are doing great

have to put the filter and charcoal in the sleeve. Not hard, but weird.

Perfect fit

Purchased online and price was a better value than buying in a store.