How are you using it? Multiple layers? Using the blue on one side white on the other filter floss? White side up or down? Seemed like with white side down I got way more in the tank and then after a large water change last night to get rid of extra nitrites I noticed more floss inside the tank. Just hanging off the rock work. Not a lot but enough to annoy me. So hard to get out of the tank too. Using a netI’ve never really noticed anything like that. I think I’m using the Imagitarium floss from Petco at the moment and I’ve also used generic stuff that’s marketed for use in stuffing pillows from the craft store with no issues.