Quote Originally Posted by aquasport24 View Post
What are your other water parameter? I don't think PH alone did it. The ph drop at night in every tank and the corals should adapt to that by now.
Yes, the pH in your tank will drop somewhat at night if you are not using a reverse lighting schedule on a refugium, but even then it should only drop by maybe .1 to .2 units. A drop of 0.7 in only 8hrs is much to fast for some corals to adjust to. As far as my other water parameters go and how the move was conducted: Temperature and salinity were monitored throughout the move with neither varying more than 1-2deg. and 1ppt. None of the corals were in the tank while I was rearranging the rockwork aside from the corals that were encrusted on rocks, but those went in last anyway. For water I saved all of my water and used it to refill the tank. The corals were not under lighting both before and after the move and I repositioned my powerheads in the same place they were before the move.

Everything is back to normal now and has been stable for the past 24hrs. I think the worst is over and I am just thankful I didnt lose everything. Time to rebuild!