Your Reef in Roseville, CA has the OG Superman. I bought mine from John back in 2011. His is legit. Yes the frags he has show the blue fading to a bluish green. Not sure where he was keeping it before fragging. I do know, currently in my tank only the outer inch or so of newer growth and the tops of the "bumps" in the main body in areas where light is stronger is brilliant blue. To keep the blue it needs a bit more light than it is getting where it is placed in my tank, which has become partly shaded from acro growth above it. It was all blue a few years ago when it was getting more light. Lineage as had been given me : Your Reef > Whodah > Copps > ROBZ > Tubs > Bruddah > isseym328 who bought the original wild colony. (all RC handles)
