Update
So after dosing the reef colors abcd from red sea, I can see some of my corals may be better now, but very slightly, zoas look happier i think so i will continue dosing. I think i found the reason to my problem (thanks to all of you :) ) my refractometer was not showing me the correct salinity. It was saying that its 34 ppm (1.025) when in reality it was about 41 ppm (1.030) yikes ! Im not sure that its that high yet, will try and get calibration fluid instead of using reference substance from a calcium test for calibrating the refractometer. Either way its too high but the thing that i dont understand is why my lps, including torches, look so healthy and so well (except for the one in the photo) hmm... Ill update after i get the water to the right salinity and if i see any changes. Cheers!