A pic might help but it sounds like it's either too close to another coral causing damage/stress or it has become too large to support it's own weight.jayfish said:
With these types of corals housed together, I would suggest using carbon if you do not already. It will help remove the chemicals released by soft/LPS corals in general. They release chemicals as a means of keeping/claiming territory which can cause damage to any coral within the tank, nearby or not.
I don't mean to doubt you but with that kind of animal load (fish), I find it hard to believe the nitrates are not on the higher side
Wildly high Ca will more commonly be from low Mg unless you are dosing Ca additives without need. Many saltmixes are deficient in Mg and often need supplimenting, especially with heavy coralline growth. This needs to be corrected or any univalves/bivalves will begin to suffer.
With no additions, I would suspect either low Mg or the test kit is defective. I would take a water sample to your LFS and have them check alk, Ca and Mg.jayfish said:
They will adapt to a fairly wide variety of reef style lighting but generally med to high intensity is best.gilly said:
As SirLight1337 pointed out, moving them can cause a fair amount of stress. If continually done so, it will cause the leather to remain unhealthy looking for weeks at a time. Once the coral is placed in a relatively apt possition, leave it be. You are most likely the cause of it not looking so good if it's being rotated on a regular basis.jayfish said:
