hi guys so i just picked up a marble motoro last sunday and i currently have sand in my tank. The problem i have found with having him in sand is that he is constantly buried in it. I have never had this problem with my previous stingrays so i dont really know why he always buries himself. I was considering removing the sand from my tank so i wouldnt have this problem. i also figured it might be easier to maintain the tank without sand, but i dont want to stress him out since hes still relatively new and not give him anywhere to bury himself when he feels threatened. So just wanted to get some opinions from everybody to see if you guys think it would be ok to remove the sand. thanks.