I did not tell you to add campden, was just wondering if you did in the beginning cause lots of times if using campden tablets they dont dissolve well and people get floaties. Im guessing that it is still fermenting and those chunks are just small pcs of fruit from what you added even if you put them in a bag as little pces always seem to escape. Only add campden(sulfites) before fermentation to kill off wild yeast and bacteria and then after fermentation is completely done to protect your wine from 02.