We did a 30% water change today and left for the afternoon. When we came back our Pacus bottom lip started to curl and ripple outwards. Can this happen because of stress? The Temperature is 79, pH is 7.6, nitrates below 0.3 and ammonia is 0.6.
The Picture is not really good. Her lip looks worse then it does in the picture.

The Picture is not really good. Her lip looks worse then it does in the picture.
