Just a quick note to inform everyone that I am confident my CS/IO problems are finally behind me. The tank has been stable for awhile (no more bleaching, etc.), I'll be getting in some new LR from Dr. Mac next week, and I am pumped! Now, I just have a bit of 'rearranging' to do and the tank'll finally be back in show shape...even better than before. Yep. Like I said, I AM PUMPED!!!