Does he show any of these symptoms.
Flukes
Signs of skin, eye, gill flukes are.
White specs on the lens of the fish eye.
Red inflamed gills, pale gills with excess slime, bleeding gills.
Opaque body with excess slime.
Flicking and rubbing.
Darting, erratic swimming.
Laboured breathing, or gasping at surface of tank.
Swimming in a jerky movement.
Spitting food out.
Weight loss.
Listless and lethargic.(later stages)
Red sores, or tiny red pin prick marks on fish body, fins.
Secondary bacterial infections.