Hi all, I am a new pool owner.. I filled up my pool via well water.. It looked absolutely BEAUTIFUL, until I put in the shock, that is!! Within minutes it turned green. What's up with that?? From what I've been reading it looks as if I have either iron or copper?? If so, what do I do to get rid of that?? All my numbers are reading ok, I need help!!! lol.. Specific product name and where to get it would be especially helpful

Thanks everyone!!
Nicole