Calcium levels over 600.......what is best to do?

[The Grizz]

So my calcium test kit must have been hooped when I first tested my calcium levels. It read 380 so I added some more & picked up a new Red Sea Pro kit for Cal, Mag & Alk yesterday while I was in Calgary. I tested my levels again last night, mag was 1400, Alk was 10.4 but my calcium was 600+.

What is the best coarse of action now? There is nothing in the tank yet but rock & sand. I am hoping to be able to move all my fish over to the new tank next weekend as long as I don't have an ammonia spike.

Any advise would be helpful.