Hello qquake. I have filter floss in the very bottom of the filter then the sponge, carbon, bio cubes and another thin spong on top. I'm really impressed with mine. Do you have it on full flow? Too, you can add a surface
skimmer for about $12 just for the Aqua Clears and I highly recommend them. They attach very easily so you get filtration from the bottom and from the surface. Attached is a picture of the skimmer.
http://www.drsfostersmith.com/produc...m?pcatid=12703
If your water is just a tad cloudy and you don't think it's an algae bloom you may want to add some carbon into the filter.