,I disagree with everyone who is suggesting the small pumps with only a couple hundred gph flow. You Want to turn over a small pond like that more often than once or twice an hour. Add a little head to a tiny pump like that and it's output will be nearly zero. Try a waterfall or fountain and you will be severely disappointed
I got this one from fosterandsmith http://www.drsfostersmith.com/product/prod_display.cfm?c=5163+5164+23512&pcatid=23512
29 bucks, 325 gph, It is pumping up into a small pot, around 3 foot high, then water falling into our deck pond. Around 300 gallon pond, maybe more maybe less. I did get a add on filter rather than use the small sponge filter.
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