Originally Posted by hotrodprincess
We have an aqueon 10 guiet flow hob. I think there replacement filter cartrages are a little over priced and if I keep changing them arnt I throwing out all the good bacteria my tank needs. Could I use some filter sponge you know the white or blue stuff that comes on the filter cartrages and make a little poutch so that I could just buy some filter media and change when needed that way the good bacteria is staying with the poutch and I am only changing the carbon. Is this a good idea or a totally bad one.
My tanks do fine without the chemical (carbon) medium. If you change out half of the water in the tank every week, you really don't need to use it.
As for the rest, you can simply rinse it well in some of the old tank water and put it back in the filter. Eventually, it will start to fall apart. At that point you should replace it. But it can be reused for several water changes.