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.
Yup. That's why I hate cartridge filters.