I've had my Balls for about 2 months now and one of them is quite active during the day time. He is very healthy (checked out by vet not long ago), NEVER has any problems eating, has shed once since I got him, and really likes being handled. He is generally very curious and active, but contrary to the vet's advice (the vet specializes in exotics) I am starting to think that he should not be sharing his home with another Ball of the same age (both around 3.5 months old). What do you think?