URGENT: Problems with my Bubble Coral

[edikpok]

Hi guys,

I have a 29g biocube aquarium that has been running for about 3 months now as a reef setup(but running for abuot 1.5 years overall). I purchased a bubble coral 4 days ago and placed it right in the middle of my aquarium so that there is not too much current to not damage the bubbles. For some reason one half of it seems to be doing fine but the other half does not fully open and it looks like it is receding.

As of a week ago my parameters were 0,0,10 and I performed a water change 2 days ago.

Any ideas what I can do to save it? will feeding it help? if so, then with what and how and how often?

Your help is much appreciated!!!

thanks,

Ed