This may not be possible.  Has anybody tried putting a korallia pump on a rheostat.  This would allow speed to be varied.  With the right circuitry one could make a automatic rapid adjustment getting a pattern similar to a vortech.
	
First step I guess I need to pick up a cheap rheostat from the home depot. Will post results tommorow evening.
	
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			First step I guess I need to pick up a cheap rheostat from the home depot. Will post results tommorow evening.
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