One of two gerbils dead, what to do?

[Sam]

Hello,

Recently one of my gerbils, Obi-Wan, died. When I went to change the water I could only find his brother, Shadow. After moving around a few things, I found Obi-Wan buried.
It's been about two days, and Shadow seems to eat and drink water, but he digs around a lot and seems to be getting lonely. What do I do?

[johanne]

Give him a week or two to grieve his friend and observe his behaviour. Did he adjust? Does he still seem his usual active self? Or is he miserable and moping around? Much depends on how old he is too. If he's over 2 1/2 or so he'll most likely be fine even if he's living alone. If you want more gerbils, you could introduce him to a pair of baby males. Then you'll still have a pair about the same age when Shadow eventually passes.