from reading over past threads it dosent seem like this anything i should really be concerned about but a day ago randall re located from his den to the back of the tank some where. i can tell hes back there because all the sand has been moved and pushed into a big pile but i cant see him. i think hes still eating because everyday theres crab shell on the bottom of the tank from the fiddlers i throw in but i havent seen him eat in about 3 days. water quality reads fine but im used to seeing him come out when im in my room to watch me in the hopes that ill throw a crab in for him. ill keep you posted if i spot him at all but right now ill just relax.