Have caught a few Minnows in the past 3 seasons, all on a size 14 nymph.
I was guiding one particular day with a chap who could not cast more than 2 or 3 lengths of the rod. Our river is small, so there are ways I told him ? At the top of a small run I showed him a catapult cast and a Minnow took the fly on the drop ! He was so impressed that I had shown him the method but not spoiled it by taking a Trout !