Sump/Fuge Suggestions

[roscozman]

Thanks to Jack, we now have our frag/fuge tank ready to go.

Below is a pic of how we will set up our sump/fuge system. The problem lies where we can not decide on how we should finalize it. Here are some specs:

90gal bottom glass tank (72"x18"x16")
...2"drain with Dart Pump
...3 baffles splitting tank almost in half
.........first baffle 13" high
.........third baffle 9" high

30gal top acrylic tank (48"x12"x12")
...3x separate 1/2" bulkheads draining into 90gal
...water will be supplied from pump in bottom tank
...3 baffles equally separating tank
Tank would be held up by 2x4 frame (not in pic) and can move to other side of sump if need be.

Lighting - 48" 2bulb Current fixture with 6500k daylight bulb and ATI BluePlus bulb


Our initial thought is as follows:
30gal top acrylic tank - Fuge/frag tank where the first three chambers would be used as a fuge with cheato and last chamber would be used for as a frag area.
90gal bottom glass tank - Deep sand bed (6inch) in the first chamber them a sump area in the second housing the skimmer.

How could/would you set up the system? Any and all recommendations welcome.