Thrlide,
I love the lighting. Have you had good growth with your bulbs? I really like my lights but wish it had a b it more blue. My blue tort has grown really fast and it's amazing how fast it spreads. I'll have to post some growth pics.
One suggestion. When you move over, I would move over as much water as you can. I've seen it in two tanks now (1 was mine) when switching to the 180, alot of color loss, bleaching, and soft/lps just not doing well. I don't know why but if you could, run both tanks and when the 180 is stable, then switch.
I have a feeling maybe it's with the new saltwater being a big difference in make up(metals, chemicals, etc) since it's basically like doing a 100% water change. Perhaps it is like running phosphate remover. You remove the phosphate so fast, corals just go nuts.