Look at this tank of the month on Reef Keeping Magazine.... Says that they haven't done a water change in over 3 years! I could only imagine having such a beautiful system with no maintenance lol
http://reefkeeping.com/joomla/index....k-of-the-month
It's also using poor-boy equipment (minus the LED's) and the whole system is kind of a franken-system.... But man do they ever make it work wonders!