INTERNAL INFECTIONS & PARASITES
Symptoms
Sunken belly
White stringy poop
Skinny fish unable to gain weight
Loss of appetite
Gasping at the surface
Internal infections are caused by worms, parasites, or bacterial infections. They are most common in imported fish, but do not worry, as they are easy to treat if caught early.
As internal infections are difficult to detect, it is best to treat your fish with broad medications.
Treatment
API General Cure
Seachem MetroPlex
Seachem Garlic Guard (mixed into the food)
Seachem Focus