robthorn, I've learned that patience is a prerequisite to perfection. My goal on this build is to have fish swimming within a year of starting. Planning began in May 06. I went to Africa in June/July 06 and started building the stand frame in the last week of July 06. If the water test goes well, I will fill the 50 QT and add a school of Chromis. That will give me time to work on sand, rock and lights for a month. Then I should have fish swimming in the 390 within a year!!!