I like the rockwork Dean. Great cave in the center. Have any problems with livestock in the early 10 weeks of your cube?
Good luck on the fuge. Not sure what kind of lighting you are gonna use or how many but stagger them if you use more than one. I used two 9 watt flourescent undercabinet lights but put them side by side. I need to stagger them with one up top and one down below. Right now most of the light is to close to the surface, the lower chaeto doesn't get as much light.
Livestock is doing great. The fish love the cave in the center. When I first got the BC, I did not like the way the night lights were placed (all three in the center of the canopy shooting straight down. I left one in the center and moved the other two to the front corners (protected by newly fabricated Plexiglas) directed at angles toward the center - looks much better and creates a beautiful dancing motion in the sand bed. At some point I will get pictures of this modification.
As far as fuge lighting goes, I have seen tanks that have removed the paint from the back and placed lighting within a DIY shroud - that is the direction I am traveling.
Thanks for the input...
29-gal BC, Yellow-stripe Maroon Clown, 6-line Wrasse, Much more to come...