I am getting ready to set up a 12gal nano and I have read that it is better to go with natural filtration is that true? If so what is the best way to do that, do I really need to cut out pieces of my filtration? I have been doing saltwater for four years now and this is my first attempt at a reef aquarium. I have also heard that nano reefs are harder than others, is that true? Please help the lost and confused.
