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Electric Vacuum Pen From Aquarium Air Pump.

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Step 41: Aqua Culture With Suction Cup

The Aqua Culture ended up working better with the suction cup.  Where before it couldn't pick up a penny or some of the heavier objects, it could with the suctions cup on.  

It could pick up a penny easily. 

It could pick up the nickel but it would take a couple tries before it would stick.  

It couldn't budge the quarter.  

It needs a good flat surface.  The round pen nose cone from before it couldn't get a good grip on. 

It was able to drop them no problem when the release valve was opened.
 
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