My turn...
24"x24"x24" AGA, MAG 9.5 return to a Seaswirl, 150 HQI MH, 65 watt PC actinic, Euroreef CS6-1.
Upgrading and additions:
MAG 12 w/ closed loop.
Maybe adding baffles to sump(if there are bubbles when i add the MAG 12)
250 HQI MH reefoptixIII, with hamilton 14k
Finish auto top off
Finish moon light