Well....heres an update, its been a while. Most details are in the thread linked to above
I finally managed to get time to work on my new rack working:
The problem was the rock was too intrusive and not at all natural looking. Ultimately it came down to rushing the job and not spending the time to do it properly. I corrected one side (left side) this weekend.
The old rack work was a two tiered piece that extended 30 inches forward and was about 18 inches tall: When the rock was laid on top it just looked like a big hump:
so........
I wanted to create a more open and natural looking structure. I alos wanted to take advantage of the way the lighting falls on the sand. Heres what i did.
I stripped the rock out, removed the rack. I then made a nbew rack that was only 10 inches tall. This was tall enough to go over the top of my CL returns. The rack was 10 inches wide, and extended around the LHS back corner to come forward by 12 inches. The idea was to make a tunnel extending from the LHS corner to the middle back.
I then made two PVC holders to support two pillars of rock:
First off I drilled a bunch of the flatter pieces of rock i had. I did this one end where possible. Then I made the holder:
to show how it assembles, here a couple more pics:
one of the pillars was placed at the back near the rack and the other in the middle of the LHS. The rock was added to them and then rock jumbled about the base to make canyons and hide the opening of the cave.
Corals were placed on and around the pillars, some holes were bored into the LR to make space for frags.
Here is the LHS middle pillar:
the LHS in total
Unfortunately, pictures dont capture the depth that re-scaping has made. I am very happy with the improvements. Now I need to work the same ideas on the RHS.
P.