what is the difference between these two montis?

"Tyree" rainbow montipora:


and just a normal rainbow montipora:

 

Looks like the tyree has purple and the other doesn't. They might grow out to be the same though.

 

usually the named corals 'tyree' etc are also suppose to hold their color better and be more colorful then other imports of the same kind. Personally I think it is just a bunch of marketing hype

 

A Tyree coral is actually grown and fragged at Tyree's coral farm.

Reef Farmers Main

 

Exactly. Both of the names "Tyree" and "LE" are put in front of corals to get more money out of them, simple as that.

 

I agree generally, although if they are actually really aquacultured pieces you can infer that they may tend to be more hardy in reef tanks because they've been proven to survive in captitivity. Just a small side benefit.

Also, the LE can have some other implications meaning that when they are first "released" it may be more rare in the hobby than other corals of similar coloration etc. No guarantees though and a lot of people misuse the term as well I think so be careful and don't get ripped off.
If you are one of those people that have to be the first kid on the block with something then you can keep your eyes out for these but IMO it's not worth it.