So the tubes on my rock have grown and appear to be some type of button polyp. They have the exact same polyps for sale at LFS...unless you think its something else...
Added some neon green zoos, red and green mushrooms, and some pulsing xenia. The xenia is so trippy to watch. My buttons aren't doing too well after my light died and it took a week and some days to replace, but they look like they're coming back. Also got some nassarius snails...I like how they poke out of the sand. There's purple popping up everywhere in little patches. Its coming along nicely, I think...