Thanks for the reply UnderWorldAquatics!
I should have mentioned that one of my preoccupations with this tank is to make sure that the equipment is well hidden - so I'm doing everything I can to avoid Loc-Line fittings. Additionally, this is why I am leaning toward the Coralife Aqualight Advanced clip-on light - it's tidy looking and doesn't require an ugly lighting hood.
Originally I had gravitated toward a Mag return pump based on my previous experience but I recall them being pretty high wattage and dumping a lot of heat into the tank. I want to use the lowest wattage and most efficient pumps I can to keep the tank temp down so I can try to avoid having to buy a chiller. Hence the rationale for the Koralia.
Using eggcrate is kinda what I had in mind for partitioning things off for filter media. I like the idea of the dual density foam - I'll replace it weekly and maybe even rinse it every other day.
And I like black silicone too!
I'm not sure about the Euro bracing though. Again, I want to keep the tank looking as much like a clean glass box as I can and I think the Euro bracing will take away from that look and complicate things in terms of putting the false wall in and clipping the Coralife fixture on.
Do you think it's possible to construct this tank without any bracing as I've drawn it up?
Thanks again.