I'm going to have 4 Hydor Koralia's on an Ocean pulse Quadra. It's only a 72gal tank, so that should be enough. I'm still a little in the dark with the Herbie style overflow. The last posting was for a 400 gallon tank, i think. I want to keep it simple, but with as little noise as possible. Still kind'a looking for more direction. anything? anyone? Doug
Last edited by Douglas; 04-11-2008 at 05:59 PM.
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