Anybody running carbon and de-nitrate in the same reactor? I am going to be running 2 phosban reactors. One will have just Phosban in it and the other will have Seachem De-Nirtrate and Carbon. I know the phosban is supposed to be between 130g and 200g. The De-nitrate and carbon I am unsure about. Should I just run like 150g of de-nitrate and 50g of carbon? or should I run 100 of each? should I follow the instruction on the filter media and use what the suggest for the size tank? What carbon is recommended?