your headed in the right direction. there is no perfect solution but what ultimately works in the end for you. some people say run carbon, some say no. i'm in the thinking that you don't run or do anything that isn't necessary or doesn't have a purpose. if you plan on having a mixed reef with lots of varied species, carbon can prove useful to help polish the water of chemical warfare but its a waste if you are not using it for a purpose, the same with phosban. the trick with most of this stuff is to achieve as much stability as you can obtain. ato is a must have and i also have a reefkeeper and love it. your light cycle might be a little long which may cause you excess algae buildup on the glass later down the road.