Yes the rock was drilled and pegged. We used Nylon bolts from a local hardware store and I cut the heads off. Then screwed them into the holes and added some small dabs of "Marine Epoxy" in some key areas. Also while we were doing this I also used some LARGE gobs of Super Glue Gel to give a quick "Tack" to help hold things as we went along. It's made in three distinct pieces so it can be taken out easily if needed. The rock structure is VERY porous and has some very cool shapes on it. Once the water clears I'll try to get some close up pics showing all the different pieces of rock and the "caves & pathways she created. We went to an "Auqa-Scaping" session at our local Reef club this week and she got some great ideas and was able to apply them. I have to say it turned our really cool. Once the water settles down and stuff I'll take some more detailed pics.
Thanks for reading
