Coral ID please - Favia? Acan?

[Starbuxxx]

LFS guy says 1. Favia, 2. Acan, 3. Acan
Please help confirm. I have a 150g mature tank, just need to know the best placement for these guys.

 

[Kasrift]

LFS guy says 1. Favia, 2. Acan, 3. Acan
Please help confirm. I have a 150g mature tank, just need to know the best placement for these guys.

Favia, favia, acan.

 

[thamnasteroid]

1 and 2 are Dipsastraea, not Favia. 3 is Micromussa, not Acan.

 

[ReefingDreams]

1 and 2 are Dipsastraea, not Favia. 3 is Micromussa, not Acan.

While scientifically correct, the hobby lumps Dispastraea into the Favia category. Not saying it's right or arguing anything. Only sharing so the OP understands the context. "Favia" is used as more of a generic category of coral, similar to "Chalice." "Acanthastrea Lordhowenses" was the correct terminology for the third coral years ago before it was reclassified as "Micromussa Lordhowensis." There's a second variety of "Micromussa Amakusensis" as well that used to be lumped into the "acan" category. The third coral is a Mico Lord, not an Amak.