i think you'll be fine with keeping your sps...well if u really want too....like brewer said jus keep in mind the lighting as well....more cost...believe me i know about college life...little money...but big rewards as well with the growth and development of your tank....im still on a college life budget and am doin fine keeping a mixed reef.....all i do i supplement with kent part a and part b....has worked fine...seen a lot of growth...not so time consuming....