Care for Goniopora, mysterious lump

I need help in caring for my Gonio. This coral of mine is very temperamental. I am not sure if it's happy or just being fussy. At the moment, there are lots of bald patches, and if you see the image below, there's a small green lump grows on one of the little cell. Should I be concern about it? This particular Gonio has been in the tank for 3 months. Do you have Goniopora in your tank? If you can share your Gonio photo will be much appreciated

 

I'm going to follow this because I really like this coral and would like to get one......

 

Very hard to keep i heard the aussie versions do much better. Looks like you are loosing this one.

 

bump for this....jmblec, I've heard that they are getting better at living in captivity but that one needs to have some nutrients in their system - they don't necessarily do well in ULNS - is this correct or incorrect???

Any long term gonipora keepers out there???

 

Ive been tempted to try a goniopora just been waiting to see a really nice specimen. I have also heard they do just fine in skimmerless systems that have a few extra nutrients but they starve and die in the majority of ULNS such as the sps systems many have in place.