i purchased a reef octopus skimmer that they rated for 250 and BRS recommends for a 160g tank. I bought it from BRS for a 120g tank. At the last minute I decided on a 225g from DSA. needless to say I opened the box to measure it for a sump. So BRS will not let me return it despite the fact that it was with in the time period and it has never seen water. (lesson learned). So i will finally get to my question. Will this skimmer work for a 225 or should I just try to sell it? if I do sell it what would be a fair price for it being that it is new? http://www.bulkreefsupply.com/reef-octopus-classic-200int-8-internal-protein-skimmer.html