I have had him for about 2 months and he is VERY chill no problems with jumping at all! When I bought, it the guy did not know what it was. It was not labeled or priced at all. It was a part time employee and the owner was not there at the time. But its all good! lol the store is a great place and the staff is cool. Even when the prices are correct lol...
Just found this article from Advanced Aquarist and thought it might be helpful.