A tad geezer. I'm not entirely sure how the autopots work but, that bit at the bottom (which I assume is where the nutes come in) would be the root ball. The wilma runs 18l pots and the roots grow into the res. The aqua gardens I run are 20l with a 20l res, I end up with 2 root balls both are massive. Sang manages monsters in 18l with no roots in the res.
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