I also prefer to use predominantely porous ceramic (aka "bio") media, but I don't think they do anything more than provide a high surface area for the bacteriaI really recommend getting some sort of ceramic bio ball or filter rings to go in your filter because it seems to help speed up bacterial colony growth and promotes a good strong, resistant to adverse conditions, bacterial colony.
that is the idea!This morning the rummynose appear to have no white spot on them at all and looking extremely happy. So hopefully the treatement will catch them in there free state!