Help. Why is my coral dying?

[JDog212]

Hi All. My parameters are as below:
Temp: 26°C
PH: 8
Ammonia and Nitrite: 0
Nitrate: 10ppm.
Salinity: 1.024
Alkalinity: 7.8
Calcium: 440
Magnesium: 1500

As you can see in the photos some of my corals aren't doing so well. I have used the Fluval Sea 3.0 light for 3 months but I have bought the AI Prime 16HD which has been running for 1 day.

Should I make any further adjustments?

 

[JDog212]

Hi All. My parameters are as below:
Temp: 26°C
PH: 8
Ammonia and Nitrite: 0
Nitrate: 10ppm.
Salinity: 1.024
Alkalinity: 7.8
Calcium: 440
Magnesium: 1500

As you can see in the photos some of my corals aren't doing so well. I have used the Fluval Sea 3.0 light for 3 months but I have bought the AI Prime 16HD which has been running for 1 day.

Should I make any further adjustments?

Further to this, the softies look to be doing okay, it's just the rest.

 

[Randy Holmes-Farley Verified Community Expert]

Have you measured phosphate? The other values see fine.

 

[Nick Steele]

If softies and lps are doing fine have you check par values? Might not be enough light for sps.