Chalice, scroll coral, and monti cap receding

[thompson2224]

My hard corals are all receding and I can't pinpoint why. My water quality is great except for a recent dip in alkalinity and ph which are now under control. Any tips that would help them? All my soft corals and other LPS are doing good such as frogspawn, torch coral, bubble coral, and so on

 

[hollback]

I would put all money on your Alk swing. By the time you caught it the damage was already done. You are now just seeing the effects of the swing. Keep it stable and hopefully things will bounce back. Your chalice and monti are a little more sensitive to swings and would likely show signs before some of the others. Keep those numbers stable! What's done is done. Unfortunately you have to just let the damage run it's course.

 

[thompson2224]

Okay how long does it usually take for them to bounce back? And how much more damage will be done typically?

 

[hollback]

There are so many variables it's hard to say for sure. The damage that was done will continue to show itself for a while. As long has you keep everything stable, I would say it should start looking better in several weeks and hopefully completely bounce back in a month or two.