new plumbing

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Originally Posted by Douglas

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 posible. Still kind'a looking for more direction. anything? anyone? Doug

A Herbie in principle is the same for a 400g or a 20g it's just a matter of size of bulkhead.

With the Hydor's doesn't sound like you'll be needing to rely too much on water through the sump to supply the flow for your display. Meaning either a Herbie using small bulkheads or a Durso.

What size of flow you planning from your sump?