More to add for future reference ...
Fining (per glisade above) makes a huge difference. In my case I tested Kieselsol/Chitosan, Bentonite, Spakalloid and Albumin. I tested these on multiple recipes (Amaro, herbal liqueur similar to Chartreuse and Vermouth). In my experiments Kieselsol/Chitosan was always performed best. Best clarity, lowest impact on aroma and taste, most compact bed, fastest results and easiest filtering. Albumen is a good second choice. Bentonite performed well but did not achieve the clarity that Kieselsol/Chitosan did and was hard on the filter due to low bed compaction and lower precipitation.
As far as sugar goes white sugar can be made to work, but a low-color syrup such as Indiana Sugar's low-color distiller's syrup produces the clearest, lowest floc product by far: https://www.sugars.com/product-catalog/all-products/distillery-grade-invert-sugar-syrup