First of all, thank you for the answers!!!
Well, I was thinking that could be really AEFW, (my first option), but I can´t see any bugs and eggs on the corals.
I agree with luther1200 when he said that is little different:
"It might be AEFW but it kind of looks different IME. Usually they are like a spotted line going right across the coral. This looks like clusters of something. But it could be. "
(My second option)I was thinking if could be some related disease bacterial infeccion, because the "clusters of something" it´s like a little sponge that don´t move by itself. Last weekend I tried the revive to see if any fall off, but I can´t see any thing. I stopped with Vodka just to make sure that carbon source isn´t the problem.
I have many SPS on this aquarium, but I getting problems just with the Nasuta, Baby Blue and Valida. Any Millepora that I have show up the problem and looks fine.
(My third option) Could be related with Bailling Method. Because a started it two weeks ago and my Alkalinity was at 6 and now was at 11 and PH was 8.2 and now 8.5. Today I stopped and I´m just applying Kallwasser.
Thanks