What a neat tank for him to go in. He can move all the rock he wants, he'll love it. Will you be a doing a sand bed? Or is there one already in there. I love the way the juvi looks and don't really mind how the adult looks (obviously not quite as neat) but man I put too much time into my scaping to wake up and have it all over the place. Good luck, and sorry I couldn't contribute an answer. My experience with these guys is non-existent.