Bio3 Filter Cartridges Regular 4 pk
This such a great way to change your filter. Use the existing clam shell and just replace the filter media.
And with this very affordable media, I don't miss a filter change and my tank looks GREAT!!!
May 17, 2013
Excellent , works great and affordable.
I have found this a reliable filter and the economy box comes with a sponge filter as well as a black holder. Great savings.
March 20, 2013
Used for YEARS!!
I had at one time three 55 gal tanks. Since I had puffer fish in one, oscars in the other, and discs in the thrird I run a penguim 200 and 350 on each tank! I'd buy the 24 pack of these filters and not only couldn't I tell the difference between these and the name brand but the savings for me was incrediable!! PLEASE bring back the 24 packs!! PLEASE never stop selling them!!
March 9, 2013
Saves a lot of money.
I've been using Bio3 for several years but replacing them required to buy complete sets including frames and sponges. By being able to purchase only the filters saves a lot of money over the year,
February 22, 2013