so, i need to change my cartridge for the first time. how do i go about doing this? do i just rub the stuff off the old onto the new? i also have a sponge filter baffle i've read those help with cycling too because it helps bacteria grow.
my other question is, is there any way to keep most of the bacteria alive once i move? i'll only be moving about 20 minutes from where i am now and i plan on immediately setting my tank up once i get everyone there. so is this even possible? i know some bacteria live in the gravel and others in the filter but once the filter stops will the bacteria just die?