Choose one of the following:
Bacterial infections
+21
- whitish film often appears on the fish's skin
- bloodshot spots
- or entirely different symptoms may also be observed
Swallowing air, headstand symptom
+0
- the fish float to the top or struggle not to float to the top
Whirling disease
+1
- black coloration of the tail area
- whirling movement around the body's axis
- deformation of the skull and spinal curvature