I am familiar with Glenn Fong and his approach (though not the details), and it may yet prove to be sliced bread for the reef aquarium, but I have seen too many of these so-called innovative approaches over the years to be overly swayed by another new set of clothes for the emperor. Yes, his tank is impressive, but so are many not using the DSR method. Plus are there other tanks that demonstrate the scalability of his approach? But I am open to new approaches, and if they appear to be legitimate and reproducible, I'll play.