Should I feed my LR
 

I'm currently setting up my 60 gallon tank, but I'm waiting on a few parts. I have my hospital tank running with a few live rocks in it. Should I be feeding my LR? It sounds like my main tank won't be running for another couple of weeks, so If I could get some opinions that would be great! It sounds like a dumb question to me but I have some amazing pieces of rock that i want in my display tank. Thanks.

No, you'll just create algae. I would have the rock in the dark as well. It doesn't matter if you lose coralline, it will come back very quickly. :)