wow thanks for all the replys everyone much appreciated i definetely will keep the sand in the tank. And i came to a conclusion that i think that the main reason that he is burying himself so much is because the guy i bought him from almost always kept the lights off, so he is probly not used to the lights in my tank. also when i come downstairs in the morning to turn the lights on in the tank he is very active and swimming around so it sounds like he has to just get used to the lights. and i will definetly post pics as soon as i can catch him coming out. thanks again everyone.