My friend is building a system to do some reef farming. I had suggested that he record experience from the beginning (as it is a pretty neat set up in my book!). I thought I would share. I don't know exactly how many gallons, but I do know that he has over 600 lbs of rock so far... I thought I would share [URL]http://www.livingcoralreef.com/blog/[/URL] :^: