Scrub algae and dirt from aquarium rocks with this small footprint, but highly efficient device using the rotary head from a battery-powered toothbrush. Things You Will Need Brush head from a battery-powered toothbrush. I used one for an Oral Action toothbrush. It has a drillable extension on th...By: barkergk
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from Instructables: exploring - technology - robots http://ift.tt/1zj03EW
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