I would suggest that the articles on 'skeptical reef keeping' www.SkepticalReefkeeping.org - by @Thales be read by everyone here. Not for this particular thread - but - just to see some of the issues when reading a website recommending things in general. The first time I read a couple of these articles - I was like - yeah - this is actually correct. Again - it has nothing to do with @PaulB s article - per se - but it is a great article about how to read advice on internet and other forums. Agree or disagree its interesting reading. I learned a heck of a lot reading them. And If I remember correctly @Thales and I have butted heads on other issues - but these articles are seriously a must read.
Thanks so much for the kind words.