I uswed 60 - 80 gallons of water from Brian P.'s tank, and about a square foot of his sand bed, pretty much undisturbed (two 8-10" square containers directly removed from his tank and set into my sump). I also used about 30 lbs. of rock from his 'fuges in his tank. I had -zero- cycle time. I measuered every day for three weeks (adding a little food daily for the week befor I put in the chromies), and ZERO ammonia. It now had a RBTA, a cup coral, a softy and a plate coral all doing well, along with some chromies, a sail-fin tang and a pigmy (cherub) angel. All are doing well.