Just go my new bsjf a few days ago and he looks good eats well. But the question i have is why is he not making a little home for himself??? I have a good 4in dsb thats a very fin sand. But before i got him I got a bunch of rubble for him. He is in the tank swimming around doing his thing but no home building. He has been in the tank for 3 days now thanks for any help you all can give.