I got a friend that is buying a 55 gallon tank. He's been watching me with my fish tanks for awhile and wants to get started on his own. I haven't done this myself but was wondering about this method. If I take out one of my old filter sponges and give it to him to put it in his new filter will that help the cycling process? I have a ten gallon tank that needs a new sponge so was gonna give him my old one for bacteria. I guess I would place the seeded sponge behind the new filter sponge in the 55 gallon tank?