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Impressive growth!

Ok, just trying to convince myself that I need/want/can afford two of these things... ;-)

I suppose you already have experimented with more holes for air input, ie dividing the same amount of air flowing into multiple holes in the bottom?

This looks really interesting!

I believe the only weak spot of this design is the amount of air needed... Why so much air? Does the scrubber need that much air (CO2) or is it needed just to...