Yeah, that little feed can be pretty messy.
I am constantly amazed by all the different modifications to feeders people have come up with to feed their fish. So the safe answer would be, with enough ingenuity (and a vacuum to clean up the ideas that don't work) one could probably use any type of feeder they had.
In our R&D facility we use some belt feeders and vibratory feeders for the smallest stuff. I have limited experience with drop feeders, but I would imagine humidity will definitely be problematic with feed that small.
I wish I had a clear answer for you, but it's just very small and very sticky stuff!
