complete teardown

[vanreefer]

I am planning to teardown my tank and change my stand and add a sump... plus I have a wicked cyano problem... and figure cleaning all the rock and thoroughly cleaning the sand bed should help.

I am planning to move everything (rock, inverts and coral) into a 54 gal (which will eventually become my sump) while I clean the sandbed, plumb the return, and change the stand... so time isnt really an issue.

I am just worried about a nitrate or ammonia spike.

do you think cleaning the sand bed then letting it sit for a day would be better or worse for the ammonia/ nitrate issue?... or should I try to do it in one day?... would it be better to clean the sandbed more than once, ie just keep doing it till the water was clear? should I put a piece of LR into the tank with some tank water and some fresh water to prevent a cycle?

Any help would be appriciated
Thanks