I'm finally about to start my tank (on Saturday), and I have a question about treating tap water before putting it in the tank: If I use a dechlorinator, is it still necessary to let the water sit in the buckets for a certain amount of time? Is the 24 hour wait mentioned at some sites only an alternative to using a dechlorinator, or does it serve some other purpose as well? I don't think I have enough buckets and space to let 33 gallons of water sit for 24 hours