live rock from tank to new tank

I have been reading for days about what to do with my LR. I just setup a 220g and want to start adding the rock from my 75 that has been running for 1 year. The 75 gallon had a ich outbreak about 5 weeks ago. I just noticed flatworms in there sense there hasent been any fish in the tank. The 75 is a reef setup also. There hasent been many of them as I have been able to suck them out, but who knows where they can be hiding.

Question is should I boil the LR or get the dip stuff from the LFS or do nothing and put it in the 220?

The 220 is just starting to get the amonnia going up also.

The LR does have alot of great stuff on them. I have 1 or 2 aptashia that I can see. I have some ferns growing also, but Im sure this would be gone with my tang in there. There are some tube worms and serpint stars also.

Thanks