Kinnadian's 240L Shallow Reef AIO

[kinnadian]

Figured it was time to upgrade to a decent tank, so here is my planned build.

My plan is for mainly softies and LPS, a few less demanding SPS.

240L shallow reef, 1200x450x450 rimless tank 12mm glass. (Greg Kingston is making it for me)

Lights: Was deciding between 2x Maxspect Razor 120W or 1x Maxspect Razor 300W, decided on the 300W. Will be hanging them using some curved polished aluminium rectangular bars (http://www.ullrich.co.nz/flat_bar_extrusions1.php, probably 40x12 size, 3 in total). I'll get them bent at work and attach them to the back of the stand.

Powerheads: 2x Jebao RW-8, for my AIO return pump I will be using Sicce Synchra Silent 1.0 or Tunze Silence 1073.008 (same pump).

Skimmer: Reef Octopus BH1000 hang on

Going sumpless with an All-In-One (AIO) design (similar to http://www.reefcentral.com/forums/showthread.php?t=2132962). The reason for this is that the simplicity appeals to me and I would like room under the tank for other items. It will be about 100mm wide by 375mm deep made of 4.5mm black perspex. I will leave a 75mm gap at the back right of the tank to hide one of my powerheads.

Media racks will have floss, carbon, GFO. Might make a DIY GFO reactor instead, haven't decided yet.

Skimmer area will just have the inlet/outlet pipes of the hang-on.

Final chamber will have heater and return pump, and my float switch for my DIY ATO. I'm worried maybe my final chamber won't be big enough for a buffer for the DIY ATO?

Dimensions are fairly loose, waiting to get all my equipment to ensure it fits.

Any thoughts on the AIO design? Haven't made one before so any feedback would be appreciated. I suspect the third baffle of the bubble trap will need to be lower?

Stand will be DIY (this design: http://www.reefcentral.com/forums/showthread.php?t=1567110), 2x4 framing with plywood sides and top and inside, all painted black. Inside I will put a small 20L quarantine tank, pre-mixing container for water changes, RODI water for ATO, electronics/plugs, misc fish bits and future upgrade for dosing.

Fish stocking: 2 black clowns, flame angel, bangaii cardinal, a blenny (not sure what kind yet). Haven't quite decided on anything else yet. Shrimp, hermits and snails of course.

Will be making stand next weekend and getting tank in 2 weeks, equipment will be a month+ away though.