Here a post I read yesterday... that is a good read ... I wanted to share with the RSM Club in case anyone not surfing all the RS forums missed it, from RS member ddeloziertalks about skimmers & the benefit of adding an algae scrubber.
Great link on the calculators, I especially like the calculator on the effects of water changes. It opens your eyes to just how powerful knowing what your tank uses and the waste products it creates means to water quality.