Steve Tyree is a person. If a coral develops a rare color morph, he slaps his name on it and it will cost an average of $80 for something the size of your thumbnail.
I have several Tyree Limited Editions. They are worth the money to me.
He is just a guy that goes out and any cool piece of coral he can put his hands on he names it tyree so he can charge alot more just like jendub she has the same thing but hers are better priced and alot cooler