400 gallon project

[Delphinus]

I have a couple questions ...

How is the framing for the top part attached to the ceiling? Just with screws, or ... ?

What are the white tubs you're using for the sump and whatnot, and where can you get those?

Thanks!

Can't wait to see the next round of pics! Also I hope you don't mind but I really, really dig that bar idea and am seriously comtemplating something similar for my 280g, I'm inspired. If not a bar, at least a place to plant one's elbows when staring into the tank.