I'm new to reefing.....yeah. I had a fish only tank 6 years ago but it been empty for a while now. With my kids being 2 and 4 I found the interest to start a reef tank. I have moded my tank for reef and filled it with about 50 lbs of live rock and 80 lbs of live sand. I found the live sand and rocks on craigslist and the tank has been cycling for a month now. I have the water ready for fish and this weekend my kids picked out some fish. You guessed it Nemo and Dori. Now I have Aiptasia and Copepods that have taken residency. I just purchase some peppermint shrimp and hoping they will take care of my pest. But as far as the Copepods are they a harm?