I'm getting ready to order up some of KP Aquatics aquacultured live rock and coming up with a plan for creating an aquascape. Any thoughts or experience using either "JB WaterWeld" or "Z Spar Splash Zone"? I've seen some information about the Z Spar being used by public aquariums, however I don't know if there are any issues using it on a smaller-scale tank. It does seem to be well suited for sticking things together under water. Any other hints or suggestions? I am going for a modern aquascape with some arches, a cantilever and some other fish hidey-holes.