Nice link, and pump...
I was particularly interested by this statement:
Water pumps serve many different functions in the aquarium. Submersible pumps such as the Rio and Supreme series are designed to run under water. This helps eliminate the noise, but puts more heat into the water. External pumps are designed to deliver more velocity at higher pressure.
(quote from the Aquadirect website)
What I couldn't find however, is the website to that pumps manufacturer (Hi Tech). I'd like to see the chart for it. 750 GPH@0 is not enough information for me, to consider purchasing one, but I am interested!
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