Good start
.
You didn't specify where this had to fit, so...
You need to pre-filter the incoming water or detritus buildup will be the downfall of the filter (the plants don't need it). Filter socks will work in your system without modification.
Place Anacharis
in the refugium waterand place a light on the side of the tank and float water lettuce and/or water hyacinth with a light on top. Use screw-in compact fluorescents in a circular clamp light fixture to limit the area exposed to limit algae growth.
Depending on the water flow rate the floater's roots will filter most particulates before they hit the pump.
Dr Joe
.