If there's one word that describes jags, it's "digger".
Any gravel, rocks, plants that you put in the tank will be rearranged by your jag to suit his taste.
My jag digs constantly. He's not happy untill he has a huge bare spot on the bottom of the tank. He even moves the large river rock that I've got in there.
My Jag digs as well. I have sand and he moves it until the glass is showing too. He uses his whole body to excavate-Sort of fans it out with all his fins and shakes his whole body-"The Jag Dance".
