Bought a sca 80g from a reefer who never set it up. It came with plumbing parts for I believe a Herbie setup. I've only ever ran a Durso style on my tanks. I don't quite understand how to plumb this with full.siphon, emergency drain, etc... The smaller pipe also has a cap. Am I supposed to drill a small hole in the cap or use the snail guards. Any help is appreciated.