To me it's not special. I like BTA that has bubbles. The color is deeper than most BTAs I have seen. But that could be lighting or camera filter and such. It looks like a new split.
I agree every nems is special. Don't let the lack of "bubbles" fool you. These animals are interesting. Sometimes they will bubble, then extend,or show no bubbles for awhile, then bubble up again. They tend do do their own thing. It's a nice one for sure!
It's a very recent split, about a week (maybe 2?) ago. I do enjoy the color. There's no color saturation or added effects on the pic. It's a little darker in person than in the photo. I thought the color was a little better than typical RBTA's.