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DIY Aquaponics: Building a Vortex Filter (Video)

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Create beautiful water garden ponds, hybrid ponds, and crossover ponds with the easy to clean Ahi Hydro™ Vortex waterfall small pond filter.

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The recently formed south polar vortex stands out in the color-swaddled atmosphere of Saturn's largest moon, Titan, in this natural color view from NASA's Cassini spacecraft.

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from TreeHugger

DIY Aquaponics: Building a Vortex Filter (Video)