I use an aquaclear 70 hob filter with an intank media basket. Probably not helpful advice if you’re using a sump...How is your floss/pad set up? Im in the process of switching to filter pads instead of floss, but I find that floss is somewhat easier to remove from the sump than the pads because pads will leak a bunch of stuff... do you separate them? are they touching? just looking for someone else' advice thanks!