@AJ the TZ Guy It's in the old Panda Interpretive Center, which is typically closed to the public except during special events. I was lucky to have visited during the holiday market.
I haven't been in the Panda Interpretive Center since the pandas were removed, but I always remember seeing the Chinese Giant Salamander in its tank and thinking like that tank might've been a bit too small for it. I was only fourteen the last time I saw the pandas, though, so I might just be misremembering things.