Why would my coral be bleaching ?

[richiero]

Why is my coral dying ?
No3 0.67 ppm
Po4 0.031 ppm
Ca 450
Mg 1410
Salt 1.025
Ph 8.3
Iodine 0.041
Temp 79.4

 

[Saltyreef]

Looks like normal growth from lack of light.
Stylos are notorious for this.

 

[richiero]

Looks like normal growth from lack of light.
Stylos are notorious for this.

These are at the top of my tank , do you mean from shadows or par level ?

 

[Saltyreef]

These are at the top of my tank , do you mean from shadows or par level ?

From the shadowed areas that dont recieve the same amount of light.
Not all optic lenses are created equal.
I prefer a large fixture at a lower intensity for better spread and to reduce shadowing.
T5s work great for this as LEDs cause a lot of shading.

 

[richiero]

Oh ok I use reef breeders they have decent spread buy I don’t have any other supplemental lighting .

 

[Saltyreef]

Oh ok I use reef breeders they have decent spread buy I don’t have any other supplemental lighting .

Have you tried increasing the whites?

 

[richiero]

Have you tried increasing the whites?

No I will try that thank u

 

[richiero]

I did the light thing.
Here are some more pics I hope it not RTN.

 

[Waters]

Yeah that doesn't look like bleaching unfortunately....definately looks like STN/RTN.

 

[richiero]

Yeah that doesn't look like bleaching unfortunately....definately looks like STN/RTN.

Awesome !!