I've found given an adequate sand depth mine love to do it. I've had all different types of polys dig, one had palmas palmas, palmas Buettikoferi, senegalus, endlicheri, weeksii, ornate, delhezi, and probably some others I am forgetting. I know my first delhezi taught my first palmas palmas and my first palmas Buettikoferi how to dig and they would all 3 dig right next to each other and keep knocking each other out of the sand. Then whoever got knocked out would stroll the tank for a minute or so then go knock someone else out it was a very interesting thing to see