Help!! My corals keep losing color. And there's a hole in the candy cane.

[neamo candy]

hello.
It's been 3 years since I've been operating a tank.

The colors of my sps and lps corals keep losing color and I don't know why. Some corals are missing entirely, but there are subtle reds and greens. After about a month of putting it in the tank for the first time, the color fades and there is no sign of it coming back. I'm looking for advice on this.

light : Intelligent Aquarium Lamp LG60 , Orphek OR3 60 Blue plus

(main Lamp)

temp : 26°C
sulinity : 35
dkH : 8
nitrade : 5
phos : 0.012
fish : clown 2, antias 2

And there are holes in the candy cane. Does anyone know about this? At first hole had one, but after a week hole got another one right next to it, and a few more weeks it started to have a small hole on the other side. There is only one coral recently added to the tank, but it has been around since before.

 

[Gumbies R Us]

Have you made any recent changes to your tank that could potentially be causing this?

 

[neamo candy]

잠재적으로 이 문제를 일으킬 수 있는 탱크를 최근 변경한 적이 있습니까?

This tank was made in 2021, and there were several problems in the middle, but it was from November 2022 that the color started to fall out. Seeing other advice, I lowered the white light to 9% in December. Montipora and some of the corals have some red back, but not the other sps corals.