Slwoly Dieing/Bleaching Coral

[Kenya]

Ok after two 30 gallon water changes I have been able to drop my DKH to 15-16. Hopefully three water changes over the week will drop it to around 8-11dkh. Do yall think this high spike in alkalinity is the problem with the coral? my sps bleaching has gotten alot worse on a frag with 4 sticks about 2 are completely bleached, the other two the tips are bleached. any chance for recovery?

other params:
amm, nitrate, and nitrite -0
ph still 7.8
dkh - 15-16
calcium- 400
my calcium has drop alot since these water changes just added some liquid calcium to help with the drop.
Also anyone know how to increase PH without increasing ALK significantly?

[hobogato]

if they still have polyps, there is a chance. you will need to make sure they are getting plenty of flow and a little less light than usual. if luck is on your side, some of them will pull thru.

[stoneroller]

I wouldn't worry about adjusting pH as you are making considerable changes in water chemistry fairly quickly with your water changes. Assuming your test kits and testing are accurate, I would wait until you get your alkalinity in order then reconsider your tank maintenance protocols. Your calcium level is fine at 400. I don't worry about pH as long as calcium and alk are in order.