Fatman- I don't think the Coralife is in the same ballpark as some of the skimmers coming out recently. The coralife 220 is $215 and the Octopus 200 is $200, so both are priced close to each other, but the Octopus would kill the coralife in terms of skimmate production. Not to mention if you went to the MSX-200 you would only be shelling out another $100 and you would have a skimmer that just might take out more gunk than the Octopus and the coralife combined. Plus, the Octopus is made out of cell cast acrylic, which is what my $1,000 H&S is made of (although the quality is obviously different), and it is the same size (24" tall with a 8" wide reaction chamber). The idea that two coralife skimmers are going to beat a single Octopus might be true, but you are totally ignoring skimmer subtleties like dwell times which determines the extent to which some larger molecules are broken down. Pump flow does have to do with how well a skimmer performs, but a good measure of the skimmer isn't necessarily all in flow, it has a lot to do with air intake. But like I said, skimmers can perform very differently just because of slight differences in design and small subtleties that most won't even notice.