No worries, thanks for the tips. At the moment, I am much more comfortable with the equipment side of the equation than I am with stewarding the amazing life forms all this stuff is designed to support. We'll see what happens next month. I can see from not only your tank but also your other projects that you're a true green (and maybe occasionally brown?) thumb.
If you had to identify, in one word, the reason why the human race has not achieved, and never will achieve, its full potential, that word would be "meetings." óDave Barry