I like the bubble trap you added after the filter socks but I don't think you'll need the baffle before the pump... just my .02
(Edit)
If you find that the water sits too still in the media/pump area I'd suggest a smaller circulation pump, something larger than a hydor nano, but not too big as to not draw too much power. If you add air stones then your just adding bubbles for your pump to suck up and throw up into your display.
(Edit)
If you find that the water sits too still in the media/pump area I'd suggest a smaller circulation pump, something larger than a hydor nano, but not too big as to not draw too much power. If you add air stones then your just adding bubbles for your pump to suck up and throw up into your display.