I have heard this is common, but I thought I would share anyway. My Royal Gramma likes to swim upside down when he is near one of his hiding places - up in the rock work at the top of a cave. Fun to watch. At first I thought he was disoriented, but this only seems to occur when he is near his hide out.
I also saw him with a strand of something in his mouth one day. He took it to his hideout and came out without it - almost like a bird making a nest!! So weird, but fun to watch.
I also saw him with a strand of something in his mouth one day. He took it to his hideout and came out without it - almost like a bird making a nest!! So weird, but fun to watch.