Hi, I have an aqua-tech filter and on my 10 gallon tank that is 4 weeks old. I just got a new filter cartridge because it says to change every 2-4 weeks. It is an EZ-Change cartridge with carbon in it. My filter also has a bio fiber in it that holds the bacteria and isn't supposed to be changed. If I change the cartridge will I screw up the bacteria? As long as I don't touch the bio fiber I should be fine?
Thanks,
Tim
Thanks,
Tim
