Are these all Favias?

[Jay Wee]

So I have a bad habit of buying corals and not really knowing what they are. Just buying whatever sticks out to me. I need to start keeping track of what I have. Right now I really want to get these 3 ID'ed. Are they all Favias?

 

Anyone know the trade name of this green favia? Or is it not a favia? It's really beefy though. Got it as a tiny frag now it has grown and really healthy. Tenticles get really really long.

 

Always loved this piece. But its been a long time and it hardly grows.

 

And is this even a Favia? Or is it an acan? I put it with all my acans but the heads are much much smaller. And the tenticles are much longer.

 

 

 

[farkwar]

https://www.google.com/search?q=acan+echinata&client=tablet-android-att-us&hl=en-US&source=lnms&tbm=isch&sa=X&ei=N39uVOe3JcH0oAS17YLYDw&ved=0CAgQ_AUoAQ&biw=800&bih=1280

[Pinner Reef]

#1 is Acan Echinata

#2&3 are favias me thinks

[CronicReefer]

#1 looks more like an acan. #2 looks like a favia. #3 could be either, it's hard to tell from the photo but it looks more like a favia to me.