I have a 2" black calvus that i've had for over a year now.. got it when it was only an inch.. it's 2 inches now.. but i noticed his mouth is always open and he can't seem to shut his mouth.. and he isn't eating either.. and is just staying at the bottom.. i have a few other male calvus in there.. could it be that they might of been jaw fighting and his jaw got messed up? is it lock jaw? anyone help me out here would be great.. i don't want to lose this calvus, took so long to grow out... :S:S:S:S:S