HD Aquaponics Ep.29 - Swirl filter blowdown, harvesting fish waste, fertilizer, sand filter

This week we dissect the workings of the swirlpoincs and learn how easy it is to harvest your fish fertilizer for your soil-based gardens. Fan Page: www.facebook.com Website: www.hdaquaponics.com Forums www.hdaquaponics.com Music by Chris Wells - burn it up

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