Closed brain coral dying? and flow question

[gwoodbridge]

I have a closed brain coral that until this week had light purple ridges around green centers. At night, they'd puff up and put out some feeder tentacles. I have been feeding it but now I notice that the green centers are shrinking, and seemingly taken over by the purple ridges. It doesn't puff up at night and haven't seen feeder tentacles in several days. On the other hand, many small green dots are appearing.

All my numbers fall within the norms as recommended, and everyone else in the tank is thriving.

Question: is it dying? reproducing?

On a related note, i'm having trouble etablishing a good flow that doesn't cause my fox coral to close. I have a 900 and a 1200 in my 58 gal., but am not sure how high in the tank to place them or at what angles to each other. Suggestions? Run one or the other but not both? Run 900 but not 1200? Take a chill pill and quit worrying?

Things have been going so well...

 

[Anonymous]

I would run both. If you have too much flow for your LPS, point the pumps into the rock work so the flow goes through the rock. It's good to keep as much water moving as possible.

I don't know what is up with the brain. If it has been eating up until now, perhaps it needs to take a break and eliminate waste?

Or maybe in your efforts to get the flow right, it is unhappy with one of the changes you made?