Cheato is pretty easy going, you can pretty much just put it in, but of course you'll need to light the refuguim in some manner for it to survive and thrive...
You will quite often see people offering Cheato up for free or cheap on the forums, and most fish stores sell it for a reasonable price as well... (I'd offer you some from my refuguim, but I just pruned it heavily this weekend... But I can tell you Fish Gallery should have plenty of it for a while now! :wink: )