When I went from 29 to 55, I used the big Rubbermaid tubs ($5.00 at Wal-Mart) and transfered all the water I could into them and added the fish to one of them... Put a PH in it and then removed the LR
into another. I then scraped out the sand into a 5 gal
bucket or 2 and then setup the new tank and transfered it back water and all. I added all sand an LR
at the same time...I would recommend you do the same...Make sure you have everything in place first and then go for it...You could polly do it in less than a couple of hours.. This worked out good for me...