Hitch-hikers......how long till I see em?

[X-Treme]

Hey peeeeeeples. Just setting up a new tank here, and I have forgotten since I set up my oldER one about 6 months ago. How long after I put live rock in the tank do I have to wait till I see some of the hitch-hikers. I haven't been looking THAT closely yet (only had the live rock in there for 2 days), but when should I START searching? Live rock was bought from "A Marine Experience" and I can't say enough good things about Neal and the way he runs his business. He figures he's had it "cooking" for a little over a month after getting it from Walt Smith. So should I start looking for goodies or not even bother for a little while yet?

Whew...........out of breath.