Answer the question about text:

So , I set to work , clearing and cleaning a space , and setting up the tank . At the end of the day , my personal menagerie had grown by one puzzled little tortoise . His personal space has grown a lot larger , and one wall of the tank was made from a mirror , so there 's even a bit of company .

Why did the little tortoise think he had company ?
He would see himself in the looking glass not realizing he was looking at himself .