[monsterfish]

To be honest, stocked trout will bite literally anything. They are raised in hatcheries and fed with pellets. Practically anything that looks attracting will have them bite, whether it's because they're curious, or just plain hungry.

I saw my friend cast an empty hook and caught one on the same hole I caught one.

Just like fish in a fish tank, they're looking up to wait for food to hit the water.

Obviously, as time progress and they spread out and grow, they learn their habitat, then it's a different story, but first few weeks of trout season, anything goes.