Actually 374 for external measurements 335 of actual water. I am about to order tomorrow, 96x30x30 acrylic with 3 fx5's one for each hole and 12" bubble wall on each end. Would you move the outer cutouts out a little more? I plan to use the 90 deg fx5 outputs. I am also changing the air line holes on the far corners to small cutouts in case I need to put power heads in those corners.
