Frag ID help needed

[TX_REEF]

Hello! Can anyone help me ID these? Picked them up at LFS and I already forgot what they said they are.

 

[Cichlid Dad]

Favia second one hard to tell for me

 

[thamnasteroid]

Both are Merulinidae spp; not sure the exact genus. Not Favia though, as that is a west Atlantic endemic.

 

[TX_REEF]

Both are Merulinidae spp; not sure the exact genus. Not Favia though, as that is a west Atlantic endemic.

Thank you! Would you be able to tell me where these corals prefer to be in the tank for light and flow? I currently have the first one top right, would say medium flow. Second one is top and center, high flow. Lit by Kessil AP9x LED 8 hours a day (fade up and fade down).