Large galaxea colony. Tips for tissue loss?

[t5Nitro]

Hey folks, I have about an 8-9" galaxea colony which I will post a picture below is losing tissue circumferentially around the base. Tank is new, cycled in January. Coral has done wonderful until now. I will list water parameters below.

SG 1.025
Ca 445
dKh 9.1
Phos 0.10
Ammonia 0

Coral sits on the glass of a 20 inch deep tank lit by orphek atlantik v4. It gets heavy flow from a maxspect gyre. Any chance of saving this coral? All but 1 SPS I've lost already and attributed it to the tank being too new. There must be something abnormal though despite good water parameters. Tank has been cloudy for 2 weeks or better. I cant pin it down to anything a hobby test kit can give me. Notably, the euphilia were looking also pretty bad but they have opened better and looked the best I've seen them in a month which I am very happy for!

Any tips for this one I'd appreciate. I'm currently trying to not let all the coral losses get to me. I've been removing as they go and wont add any more at this time. All corals came from a 7 yr established tank. No new livestock, simply transferred that whole established tank to my tank when it needed to be taken down.



As a comparison, here is the top of it.

 

[ndrwater]

Gyres produce a ton of flow.. LPS like Galaxia like moderate flow at best. Try turning down the flow a bit and see if that helps

 

[xxkenny90xx]

Mostly likely it's the new tank but could the cloudiness be blocking the light from reaching the coral? Maybe a uv sterilizer is in order

 

[billwill]

Unless that’s the only coral you want in a 24” radius, I’d recommend getting rid of it. Galaxea have some of the longest stinging sweepers I’ve ever seen, and nobody can beat them