I have 2 bronze cories and 2 albino cories in my guppy empire tank. I also have a pleco there, whose name is Shy Guy.
One day I was feeding those green sinking wafers you feed cories, when Shy Guy swam over to it and hijacked it from the astounded cories!
Well, the biggest cory, an albino, wouldn't accept that and started eating off the wafer, which was already halfway into Shy Guy's suckermouth. The others joined in and, somehow, managed to pull the wafer back. Shy Guy is SHY (duh) so he retreated to his place, the bottom of the heater.
The cories devoured the wafer, and Shy Guy never attempted to do that again...