ive had this blue spot jaw fish for about 3 months now. hes been the most active fish in the tank, so when i went out yesterday morning and he was no where to be found, slight panic set in. So i figured maybe hes just being cranky and hiding, and i'd give him a day. well today still no sign of him, i checked the back of the tank behind all the rock work, in the overflow etc etc. so I dont know if this is normal for them to just go into hiding or if he burried himself and is now dead. all my rock on the bottom glass and nothing seems to have shifted. some of this holes have filled in a little bit with sand and the yashi has taken over one of his holes. so do i just wait it out? or should i start vacumming out sand to look for a body?