I have a Toxic spill, goldmeister, and a Miami hurricane chalice and lately the tissue has been receding from the center of the chalices instead of the edges. They are placed lower in the tank with medium flow. they are also angled so not receiving direct light. i haven't observed any fish picking at them at all.
I use GFO and Biopellets to keep down my phosphates and nitrates and skim heavy. I also use carbon.
My Params are:
Salinity: 1.026
Phospates: 0
Nitrate: 0
Calcium: 450
Magnesium :1380
Alk: 8.2
I can try and take pictures later but on my phone they never turn out well. If anyone has any idea what could be causing this and how to fix it i would appreciate it. The chalices and my favias are having the same issue. everything else is thriving including SPS.
