Loved the post Scott.
I got this frag in Nov 2013, it has since then encrusted but not grown taller. In lower light it turns brown.
This would be a microclados then?
Hmm...Did you obtain this one from us? It doesn't actually look like a specimen of A. microclados to me. This seems to almost have a tubular branching form, reminiscent of a deepwater Acro, or maybe even a valida or some other species. Neat color, though....
-Scott