Duckweed 71 uses
Bright AgroTech--ZipGrow(TM) vertical hydro grow towers with Aqua system
Surface Area inside diff mediums
SSA=SqFt surface area n/s a cubic ft
so fiber media gives surface area of sand, but with much better flow thru.
Min u need 2.5 SqFt surface area
Better 1lb fish /10 gal water--need 25sqft of bio-active medium surface area= 100sqft/pound fish.
ZipGrow is proprietary media
wood chips? Simply wood. Great and efficient media for hydroponics. If you want to go truly organic with your growing media…you can’t get any better than wood chips! Additionally, some studies have indicated that wood chips reduce the effect of plant growth regulators, meaning your plants may grow slightly larger.
Benefits=Organic+Holds structure for a long time
Downsides=Biodegradable+May not be sterile+May attract pests
Vermaponics---