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I can't be certain but it looks like a colt coral to me. I would keep them both. They were hitchhikers? Although, the dark one would probably appreciate more light than it's getting where it's at. I've included a pic of the colt I had. It's polyps were just opening up in the pic. Even close? Hopefully someone better at ID'ing will stop in and give you a more possitive answer.
Thanks alot for your help. I think they might be it. Yup, they are hitchhikers. They just poped out of nowhere. I notice this after I finish changing my water and cleaning cc.