Alrighty. I finally got Simon's new tank up and running. Yay! It's a 10 gal. tank, we're planning to put him in there with some cardinal tetras eventually. I added his new gravel and filter (Millennium 1000). I pulled all 9 gallons of water from his old tank and tossed in a handful of the old gravel as well. I put in an old plant and one of the big giant cave rocks and a couple items of decor, all to help with the bacteria load. So my question is, can I add Simon now, should I wait till morning, or do I need to actually run the tank for a few weeks?