I currently have a 29 Gal Biocube set up with 25 pounds of live rock and some live sand. I have removed the bio balls from the center chamber and replaced them with a few pieces of live rock rubble with a chemi pure elite bag on top of them. I also have a piece of Pura filtration pad placed over the top of the drip tray and have cut back the plastic lip in between the first and second chamber to allow for inresased water flow. With all that being said i still have quite a bit of particals floating around in the water. Not sure if maybe my power head is blocking some of the water from going into the intakes or not. It is currently located between the uppper and lower water intakes on the right side of the tank. Other than the particles the water is very clear. Does anyone have any suggestions to help me get rid of these particles? I also have the protein skimmer for the Biocube but it does not seem to do very much at all.