I just picked up a SunSun 525 canister for my 75. It came with bioballs, and ceramic rings. And a bag of carbon. Other than that is was simply a few white pads. How do you guys recommend loading this thing? There are 4 trays. I currently have aa emperor 400 that is getting noisy, it will go away. It also has a marineland 250 canister, too small to be the only filter. I thought about rinsing and cutting the blue filter material around the current canister and putting in one tray to preserve some of the BB. The instructions with this thing seriously suck. I had been thinking of this: 1st pass, blue filter material cut from old canister.maybe one of the white filter pads it came with. 2nd pass, the black bio balls. 3rd pass the white ceramic rings 4th and last, the white filter pad and carbon if I decide to run it.... still debating on the carbon thing. Thoughts?