Thanks for the feedback.
I've moved that thing all over the place in the tank, High, low, indirect lighting, lots of flow , moderate and low flow. It is still hanging in there but it is starting to get yellowish spots.
Just yesterday did I move it over in my 5G quarantine tank. This way I can keep a better eye on it and give it some personal attention.
It was the recomendation of a guy in my LFS
to feed it so right on where the polyps are, this way they may be encouraged to come out for food. I can't do that in the bigger tank. Now I can stop the flow, sprinkle some shrimp brine on it and see what gives.