Really serious question. I don't have one but would like to know from the people who do what is the benifit? My tank is up almost 2 1/2 years no sump or skimmer just a dsb and power heads. The only reason it's this way is because when I started this is what the LFS told me to do. If I can better my system with a skimmer please tell me? will the corals like it more?



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