I believe ceramic rings are grossly over-rated
People in the old days have manage to host an established bacteria colony just in the tank gravel as well as on the tank walls before ceramic medias were invented. All they need was a filter run by an airpump with filter pads stuff into it.
People in the old days have manage to host an established bacteria colony just in the tank gravel as well as on the tank walls before ceramic medias were invented. All they need was a filter run by an airpump with filter pads stuff into it.
