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Iceman
The nebula will respond to a UHC (from experience) and it definitely likes the OIII (from reading), but it shouldn't be needed to view this object. So long as the sky is resonably dark you should be able to locate it in some small scopes. I have located it from my Brisbane backyard with a 4" short tube refractor, so you should have no trouble finding it in your dob.
The bigger aperture is needed to see some of the fainter details in David's picture. I have heard it referred to as the "spiral planetary", "leafy sea dragon" and the "seahorse". Check it out and take your pick on the common name.
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