3 days ago, I put a semilarvatus butterfly in a one month old QT that had cycled. Today, I noticed that she is breathing very heavily out of only one gill, the other side is not really moving. The ammonia did creep up a bit when I checked it this morning, and I did a 33% water change and used novaqua in the QT. There is still some detectable ammonia. Any idea what is going on? I'm surprised that only one gill is moving quickly. There are no spots of any kind. I have not been using any prophylactic medications in the QT.