Need some advice/help

[Redbarnreefer]

My tank is 1.5 years old and has had its ups and downs. I feel like I am finally getting her settled in and am starting do get some good sps growth and color. Then a month ago I lost my first sps in 9 months. To be honest I didn't think much of it as I had just moved it and figured it hated the relocation. But earlier this week I love a piece I'd hate since the beginning after some STN. Again went through parameters,found CA to be high after buying a new test. I have previously ran my alk between 7-8 as my system barely registers nutrients. Due to the high ca I've slowly raised my alk to sit between 8-9. And been feeding my tank a ton.

I'm currently:
Just below 500 CA
Alk 8.9
Mag 1320
I'll test n and p tomorrow as I don't have a current level. - I don't test often as it hardly registers. What has me worried is this coral.

I'm worried about AEFW but pulled nearly all the frags in the tank and couldn't find any evidence, no eggs, bite marks, ect.

I'll try and get some more pictures after work tomorrow. Seems like a pest but I can't find one...

 

[Va_Reef]

Those aren't the bite marks of AEFW, looks like burnt tips IMO, just obviously not on the tips.

 

[Redbarnreefer]

Those aren't the bite marks of AEFW, looks like burnt tips IMO, just obviously not on the tips.

That was my first thought but I've never seen it spotted like that before.