WARNING: The contraption below has NOT gone through system verification and test or field tested.
Been thinking about what I would run if limited to a closet or bathtub with say a 600.
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All home depot parts except for the panels and binder clips.
27 gallon tote with 3/4" slip pvc (no glue only friction fit.
Drilled and tapped 3/4" hole for threaded fitting (center ends of lid). I didn't like the little bit of wiggle so I added that brace at one end.
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Another angle with the panels open. The plants are tied to the lower pipe with double sided velcro.
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I could imagine this trellis configuration with bottom branches trained down and upper branches trained upward.
I can imagine two of these facing each other .
The panels eliminates the need for any medium and net cups, etc.
A~~~