Generally, however, there is loss of appetite, heartburn, nervous dyspepsia, constipation, or diarrhea, abdominal distention, headache, vertigo, emaciation, and loss of sleep.
Clinical signs associated with infection are nonspecific and may include appetite loss, uncoordinated swimming, lethargy, coelomic distention, darkening skin color, petechiae, fin erosion, and death.