Sorry I do not know what you mean by floculant!
This is what I can find on the product:
"Proquatics offers more serious aquatics hobbyists the expertise and high quality products they need for their harder to solve problems. The Water Clarifier causes tiny particles of dirt & debris, tiny algae cells & bacteria that are too small to be removed by aquarium filters to clump together, forming larger particles that the filter can easily remove. Helps clear cloudy water within 24 hours."
http://www.petsmart.com/global/product_detail.jsp?PRODUCT%3C%3Eprd_id=845524441777345&FOLDER%3C%3Efolder_id=282574488339117&ASSORTMENT%3C%3East_id=2534374302023693&bmUID=1109608841295
The tank is quite new and was clear until I planted my plants and disturbed the substrate which is:
Chris