Hello, I am in the process of setting up a large aquarium. What is considered the best way to filter an aquarium of 500+ gallons? I know wet/drys were big in the 80's, but am not sure what is the best available techniques for biological filtration. It will have a large skimmer, DSB, some LR for caves, carbon, and UV. I am not sure about ozone yet, but I am considering its use. Any advice & tips will be greatly appreciated.