Sponge filter not working
So Iíve had my sponge filter for 2 years and I had it hooked up to an airline, but my air pump started getting noisy so I got rid of it and switched to a powerhead instead. I havenít rinsed the filter in a year and it still looks like new and I just rinsed it today and the water looked clean. Is the sponge filter not doing anything? Am I doing something wrong?