here is how i do it. I cut a hole about the same size/dimension as my minnow trap and lower through the ice. On the rope that is attached to the minnow trap is a piece of 2x4 or 1x2 that goes accross the hole that is in the ice. I usually set my trap just below the ice and depending on the pond I may get a few dozen or hundreds. For the small brooks/streams I find an area that the water isnt moving very fast throw my trap in and tie it of to a tree. It depends on where I'm trapping as to how long I leave my bait traps in. One spot a couple hour soak will get me hundreds of dace, another hundreds of shiners, other spots I let them soak 24hrs and get only a few dozen.