Ya, that thing's tucked into a pretty good spot, would be difficult to move. I tore one of my BTAs up trying to get it out of a hole. You may be able to get it to loosen up by pointing a small powerhead at it, or using a turkey baster, but that could be a bit of a chore.
I'd say move the VorTech first if that's feasible & see what happens.
As far as feeding, daily seems a bit much. From my own experience the nem takes a few days to a week to digest something like a silverside. I realize you're chopping it up, but I suspect it may be spitting some back out when you're not seeing it, or perhaps at night.
Would help us help you if you provided more info as to how long you've had it, has it moved before, size of tank, type of lighting etc.
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