Ok, thanks for they advice and comments you guys. He's actually very cool even though most of the time he's a lump lol. Even when he swims around the upper tank, he's not a strong fast swimmer....he looked sort of clumsy swimming around with his giant mouth gaping open.
Chuckaa, what do you mean by warming it up? I keep the temp at 80F and there's a aerator/air pump making bubbles...what temp are you recommending?