sure, i was using the 3part AN every watering thru the entire process,'Fluff' could be the result of over or under watering, over or under feeding, your genetics, and/or your lighting. The 3 part you're working with now is a copy of GH's 3 part which is something I've been using for years. That 3 part formula does not grow 'fluff'. Maybe if you post your feeding schedule, we'll be able to help you dial in something that works a little better instead of recommending more products.
and i was watering once weekly so they were getting about 3-4 galons of water once a week.
ive been told recently that i should be watering every 2 or 3 days, and ive moved into smaller pots so this should be easier for me judge.
oh, i was also using tarantula and piranha the entire time which i recently found out i should be only using the first few weeks of flower. (right?)
thanks guys!