I like the sponge filters in the HOB but to clear up that water a little quicker poly-fiber filter material might catch more of the particulates. Just be sure to turn off your filter when you are changing the poly-fiber or all the "stuff" goes back in the tank - lol!! I have tried Seachem Clarity in the past but to be truthful it doesn't seem to help with inorganic particulates.
75 Gallon, 2X55W AH Supply CF 8800K, 1XFluval F&P 2.0 48"/59W, 2X Marineland 350 Magnum filters; 45 Gallon Tall, 96Watt AH Supply CF 6700K, 1X Marineland 350 Magnum filter; 30 Gallon Long; Fluval F&P 2.0 36"/46W, Marineland C-220 filter; 20 Gallon, 1X26W AH Supply LED kit, Marineland C-160 filter; all with Press. CO2 and (Calcined) Montmorillonite Clay
Greater Seattle Aquarium Society (GSAS)