Hey all, I have a 10" Tiger O named "Zeus" he's in a 55 gal. all by him self. I do weekly water changes, and gravel vac's, and test the water weekly alos. Well, lately zeus has been extremely extremely agressive !!!! if ANYONE comes within 4 feet of the tank (including me) he goes absolutely insane trying to attack you, hitting the glass so hard you can hear a banging sound a few rooms away. He even cracked the glass on top of my tank, and I have to keep steel toed boots on them now so he doesn't nock them off. and he swim's so fast that the gravel spiral's around the entire tank. well I got up this morning, and it look's like he broke his jaw. His botom jaw is hanging down and to the right, and it looks like he can't close it. he ate a jumbo stick this morning, but that's all within the last 4 days. This is my first O, I got him when he was 2", and I LOVE him dearly. I have been learning more and more since I got him, thanks to this sight!!! is there anything I can do? I dont wanna lose my O