Whitefish are wonderful creatures and fun to catch. From my observation, they seem to be more opportunistic, almost reckless, as to choice of meals. Trout seem to be a little more honed in on the menu and thus a bit more picky about the actual hatch. That said, I would investigate a few, large, flat, rocks, and proceed with a fly that closely matches those inhabitants with a Czech nymphing strategy. Have fun!
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