New Independent Frag Tank

[Lostreefin]

I have a question for the folks who have set up a frag tank and lived to tell the story. I am curious about how long after I set up my raceway and sump and add water can I safely add frags? It will not be attached to my display and I wasn't planning on adding much or any media. I do have some clean dry rock that I have been cycling for a few months that I could add to the sump if it will help me. I also thought about bio bricks with bacteria, seeding from my display or just bottled bacteria alone. I was planning on running a calcium reactor off the jump, but its not going to need much and also dose NO3 and PO4 to maintain levels. If all that goes in are corals and tiles will I have issues? Is the frag tank going to go through "the uglies"? Thanks in advance!