Thanks to all the help people so quickly provide here! I have a 30 gallon tall (still stocking as I write, really!) and am in the process of setting up a 200 gallon reef tank for my students through grant I wrote last year (Craig M. has been a great help in this!). I have sent my students to this site to research information on how to set up, take care of, and stock a tank. This will be a great place for me and my students to come to for help. :bigbounce