I put range cubes in a perforated pvc tube or bucket and it attracts the bait fish. The bait fish and the smell of the cubes brings in the predictors.....at least that is my thinking. FWIW, I have seen the bait fish kissing the holes getting the feed out.
I surround the tube or bucket with Green Hdpe Extruded Mesh Rolled Fencing to give the bait fish some cover.