Need your help with upgrading

[Sea-nut]

I am about to start upgrading my show tank from 65 to 150, I need your help with three issues.
1 - Since the new tank would be in same spot, what is the best way of doing this, do I need to transfer all corals to a storage tank of some sort and let the new tank cycle for a few days or because I am not adding anything new accept sand, I can go ahead and put everything back in the tank as soon as is set up.
2 - I hate to loose all the nice live sand that I have in the tank for last 3 years,can I rinse it with clean salt water and reuse it?
3 _ I like to see some plans on Closed loop and how to do it.
Thanks

 

[Roy G. Biv]

1- 18 gal rubbermaids are cheap.
2- put 5 lbs asside. put the rest in a rubbermaid, and flush
3- do you have a glass drill bit?

 

[Sea-nut]

No I don,t have glass drill bit, I am going to get the LFS to do the drilling, what do you mean by put 5 ibs asside and the rest in a rubbermaid.