ive had a cleaner shrimp for about 4 months now and i came home yesterday and realized it was no where to be found, its a 45 gallon tank and theirs really not many areas that i cant see and i cant find this thing at all and i figured if it was eaten i would atleast see bits and pieces but nothing and i also checked the floor around the tank still nothing. my question is do i have to panic and really rip my tank apart to look for this thing or will it be ok if it actually died the fish and the hermit crabs will get to him and it wont foul my tank up. ive been checking the params periodically since hes gone missing and everythings still perfect should i worry?