hi.
I agree with some of you, but not all of you.
The first one is NOT a Xenia. It is an Anthelia. The second is regular Xenia from IndoPacific, aka, blue Xenia, tree Xenia, silver tip Xenia, and other names. The third is Xenia from RedSea, aka pink Xenia, etc.
Pulse or not is not used in the taxonomic classification of Xeniiodes, so it does not matter.