I like rio 10hf in my 29 gallon drilled, its at 4ft of head and works nice. Silent. Had it running for 3 years now.I also have the same skimmer, but the knock off version sc-301, same pump/body etc. There are higher quality pumps like a sicce or ehiem, im sure they are great too...i know you prob know but you want a pump at your given head height, that matches or is close to your skimmer pump output.