I recently upgraded my 60 gal
to 150 gal
with 72" foot print at the same spot. Here is what I did.
1. I Moved the live stock to 2 separate 20 gal
plastic containers with LR
and water from old tank. Heaters, power heads and lights were provided. I saved the remaining water to another containers since the params are good.
2. After the new stand and tank were in place, I do the preliminary aquascaping and added the new substrate which was rinsed a day before. I added about 3 cups of old sand without mixing with new sand. This is to transport some bb and minute cucs.
3. With the new water mixed with some old I let the tank run overnight without the skimmer.
4. Next day I made sure the params on both tanks and plastic containers are within tolerance before moving all the remaining LR
and livestock to new tank, All corals remain attached to the original rocks.
It went smooth like a breeze.