My LTA is also a sand dweller, i have a female perc hosting it right now, and her mate is hosting a Sabe about 12 inches from it. The LTA is pretty skiddish, if i touch it too hard when giving it food, it retracts entirely under the sand. This freaks out the clowns, they start running around where it was in circles until they spin enough sand out to uncover it... i like watching them, i just wish my LTA would quit burying itself. Its foot is all the way though my DSB and is attached to the bottom glass...