Bubble Coral Dying I think?

[Reloadeddevil]

I have this bubble coral in my

29g biocube HQI. I had it for 4 months now, in the recent month i noticed that some of the skeleton started showing. Wondering if somebody can help me with this.

 

[subielover]

Ok, well we need some more details about your tank, specifically water quality. Is anything close enough that it could be stinging the bubble? How much flow do you have in the tank? More details please...

 

[skinz78]

Can you list you Cal, Alk, and Mag?