Today I noticed my Arowana brushing his face against the glass over and over again and he keeps opening his mouth super wide like 5 times a minute. He's acting like he's trying to swim through the glass. He just wont stop is why I'm getting concerned, its not his normal behavior and his appetite is crapy today hes normally a black hole with food but today hes not as jumpy to eat. Is he ok or am I just paranoid?