That is what I do not understand. Insofar as I can make out from the photos, the integral feeder is essentially the same as a "traditional" frame feeder. In the latter a float /polystyrene packing beads / mesh on feeder walls can prevent fatalities - so why cannot these techniques be used in this nuc feeder? I'm probably being very obtuse and the reason is obvious. So I'l lhave one brought over sometime and do my own investigations (in my own specially constructed laboratory)
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