Again, I'd argue it seems gimmicky. Skimmers skim what they get at. This concept has a finality --- The skimmer. Excuse my lack of enthusiasm, but the whole "promote oxygen/co2 transfer and ion exchange and somehow encourage stable PH on the counter evening cycle" screams of overselling. If this were a thing, the skimmer is already doing it. I don't see how this adds to what good water movement isn't already doing. Moreover, let's give it the benefit of the doubt and say it IS doing this stuff - still seems like diminishing returns.
The vid seems like a cheeky poke at me...
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This and that.
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