So you go to your lfs and pick out a new fish all excited to add the new addition to your tank. You take care in the whole process quarantine them watch them to make sure all is good and we'll. Then the time comes to add them to your display tank and poof they pull a disappearing act. Days pass and no sign of them you search day and night just hoping to catch a glimpse to be sure they are OK. What's the longest you have gone without seeing your new fish ?