They're pretty decent, but I dunno if I would consider it for a tank that big. The spray injection design is nice, but I don't know what it would cost you, but I'm almost willing to bet that for what you're going to pay, you could get a pretty awesome multiple needlewheel skimmer for that price, and I trust a good needlewheel more than any other type of skimmer as far as consistency and efficiency. I know that you can get more skimmate out of a beckett, but they're also less efficient and less consistent. To each their own though.