I'm establishing a new 75g tank, and since I do not have any cycled tanks, I was hoping to get (sponge or hob) filter from a well established tank to speed up the cycling process. It has to be a filter that you are currently using in a tank, not a washed, clean, or unused one. I need this for the live healthy bacteria. Please let me know what you have and how much you are looking for. I really appreciate any support.