My Whisper 60 had "died" the other day. So I took one of the filter sponges and stuck it in my Whisper 20 and ran that as a backup. The carbon cartridge was new, but the sponge hasn't been cleaned (only rinsed ever couple months in tank water). So I spent some time getting my Whisper 60 to work again... and i did... so i put it back on... but of course all new filter media and sponges void of any bacteria.
How long would you say it will take for bacteria colonies to establish themselves back on the Whisper 60?
How long would you say it will take for bacteria colonies to establish themselves back on the Whisper 60?