My newest fish Lava will not settle down and flares and fights with himself non-stop! I don't see how he could see his reflection... I've tried turning out the lights, blocking his view with various colors of paper and he won't stop. I bought him a new 10 gallon tank and put him in there (from the smaller 2 gallon) hoping the extra space would settle him and he'd focus on exploring. He's just as bad in there and is really fighting hard with the imaginary enemy, biting at the glass. I'm worried he'll have a heart attack! Just how long can this go on before he kills himself? What can I do to calm him? I'm really concerned!