I am putting together everything for my new setup and I was looking for the best media for my setup. It will be fully submerged in my 75g sump sitting on and all around my tetra pond boxes attached to my pumps. Im thinking a bunch of ciramic rings in media bags. Might run air stones around them as I have a few extra air pumps laying around. Is this a good idea? Who makes the best rings and where is the best place to order them from? How much should I order? tank will be a medium stocked 225 with ca/sa cichlids and a couple panaque species plecos. Any input will be Greatly appreciated guys!