Cool!For reference here is what mine looked like when I checked the tank before leaving for work. (I didn't take this pic then, but it still looked the same). Please excuse the heavy blue, this was taken when lights were ramping down.
And this is what I came home to (THIS pic was taken immediately after I found it had split)
The nem on the left has since moved to the right of the other one, which has not moved at all.
It has good flow and led lighting. My hammer coral is he thriving in the same conditions. When we got him he was brown. He found his comfort zone and he ate well, grew and turned a delicate pink with green iridescence. It really hasn't lost that much color. It was never super vivid like yours. How long have you had yours?
I have had mine since February. It is not a rose bta though so the color will be different. The light pink and white of yours is what's making me think it is bleached, they often are at the LFS so you may have purchased it that way, many do. These guys usually need higher lighting then most LPS to thrive and if yours has expelled most of his zooxanthellae then he will need fed. What brand of light is he under if you don't mind me asking?
The lighting should be fine then. I am definitely not a nem expert, but I believe they need to eat more meaty food when they are bleached because they cannot get enough food from the lighting since they expelled their zooxanthellae.
