I hear good things about tbs rock(tampa bay saltwater) its all man made limestone thrown into the florida keys(iirc).
No pics sorry.
Tbs rock, although full of sponges, crabs, worms, ect. Most of the stuff will not survive in the tank. The best rock imo is rock that has corals and corraline algae on it. Thats it. Pref just corraline.