Poor pic, but can anyone identify this?

[Lightspeed]

bought a small Rhodactis rock which was in lfs and doing very poorly, has a encrusting coral which had started to bleach and all polyps were closed shut, had it under the Vipars for a few days now and the bleaching areas have started to re colour and polyps are extending the most i have seen since purchase and am trying to save it, gave it some roids along with the dying acan i bought, trying to save too.
Can anyone help? Lepastrea?? But does not quite look right, maybe in a week or so and some more feeding it will open more.
Apologies for the mobile pics, i am trying to find a decent mobile camera augmenter lens.

First pics are the acan after purchase, then 1 day later but before feeding.

Next pics is the unknown in question, positioned on the far left of the rhodactis in the first pic, you can clearly see the bleached area.

 

[EW_Fish]

Looks to be encrusting montipora

 

[Ranjib]

2nd one is zoa , 3rd ricodia, 4th monti or chalice

 

[Lightspeed]

Looks to be encrusting montipora

Oh dear, i am not ready for sps

 

[EW_Fish]

2nd one is zoa , 3rd ricodia, 4th monti or chalice

The 2nd on is acans. There are no zoas in those pictures

 

[Lightspeed]

Hmm, i will lift it higher and see how it reacts incase it is monti, thanks guys!