Live rock allright

[gkimble]

My petstore is having a really good sale going on right now for cured live rock. It has alot of purple coraline on it and some really nice shapes. I will not be setting up my tank fpr a month and was wondering if I could get a 40 gallon tub and put all the live rock in there with a pump and heater to keep it aliive and cycle. Will I need light to keep the coraline? will I need a heater if the room temp is constantly 74F?