Adding dead rock

[canadianbudz604]

I added 2lbs of dead live rock rubble that was taken out of my old tank like 6 months ago to my 30g reef today. The Rock was outside the whole time. I dried it out for 4 or 5 days, then I rinsed it off with ro water and toothbrushed off anything I could get off and threw it in. Is this going to cause my tank to crash or cycle? Did I mess up big time? My tank has 30 lbs of rock and is stocked with palys, softies, lps, and some easy sps. Plus 2 clowns, 2 clown gobys, and a cleaner shrimp. Help?