Yes, he already eats enriched krill alongside my lion. I have not seen any burrowing behavior but I think its because have a thick aragonite substrate (tank's first inhabitant was a peacock mantis). I may add a bag or two of live sand to encourage him to dig. I wanna upgrade to a 50 rimless (36"x18"x18") soon to accommodate my growing collection of ambush predators. My next fish on the list is either a true Synanceia stonefish or a Rhinophias. I've been seeing alot of nice rhinos in LA recently, gorgeous all yellow colors.