well i have been doing a lot of research on filtration and it seems that skimmers actually take out trace elements in the water aslong as all the gunk. so i am a little skeptical about buying a skimmer. whether i obtain a skimmer or not i will do religous 37% water changes monthly. which according to the RK Mag its more effective than doing small water changes. so should i get a skimmer (corallife superskimmer) for my 24g tank. i just bought the tank. there is nothing in there yet. intend to get 150w HQI halides for it. dimensions are 24'' X 12'' X 21''. hope that helps. im going to start out as FWLR and boom into reef when tank is mature and i can keep it very stable.