u/Ill-Switch4563

Hello, my six months boy Hugo have habit to dig tunnels under training pads. First night and day everything was good after placed fleece. After night found corner of training pad shredded. Fixed that corner and placed treadmill. At early morning Hugo adventurous hog pushed away treadmill (its heavy) and shredded again training mat and digged like crazy and loudly through all terrarium. So how I can fix that ?