Survival time without lights??

[golgi aparatus]

I am in the process of moving from a 55 to a 75 gallon reef. My question is how long can lps and softies go without light and be ok?
I am having some trouble with the lighting in the 75 and am concerned about not having the light setup in time... PLease help!!

 

[mr_x]

i wouldn't worry about 3 days..