Need help. Sps going white

[Cyberdude]

So I had this sps for a while (3weeks) got it in perfect condition. It was in a corner out side direct light for 2 weeks and looks like it does today. I just move it to the center of my rock work hoping for it to improve.

Parameters are all fine and other sps is doing ok.

What am I doing wrong?
Should also mention that I have turned off gfo and carbon and did two 10% water changes in the last 4 days.

Mag 1350
Alk 9.3
Ca 420
Temp 79
Sg 1.026
Nitrates <5
Phosphates 0.02
Ph 8.07

 

[DNA]

Corals dislike changes and instability.
Moving tanks will cause stress from many factors.

Placement, current, light intensity, salinity, alkalinity ....

 

[Kenzo0]

It's a birds nest right! Same thing happened to mine. I had three, two pink and one hyacinth. They were bleaching from bottom to top, I didn't know why either! So I fragged everything but the pink ones died, but the hyacinth survived even the original frag! So it's better to frag it before you lose everything!

Oh and what kind of salt are you using when you do water changes?

Before I used instant ocean regular salt mix and there was no growth in corals and my pH will always go bellow 8.2.
Now I use instant ocean reef crystals and I have good growth on my corals and pH doesn't change either!

 

[Cyberdude]

It was the lighting. I struggled 8 months with another brand. Been literally 48 hours with the new hydra 52 and everything is growing again!!! I still can't believe it

 

[Reefer07]

Just make sure you acclimate your tank to new lighting, especially somthing that powerful.
I.E. - Reduced daylight cycles or putting somthing over ur tank to shield the light like eggcrate. Tanks can even benefit from complete blackouts for a day once in a while.

 

[Cyberdude]

I've got cloud cover every 15-20 min. They love it.