Parasites in fish are a common natural occurrence. Parasites can provide information about host population ecology. In fisheries biology, for example, parasite communities can be used to distinguish distinct populations of the same fish species co-inhabiting a region. Additionally, parasites possess a variety of specialized traits and life-history strategies that enable them to colonize hosts.
An emaciated body
Red worms leaking out of the fish's anus
Loss of appetite
Use anti Parasite medicines according to the tank size (Dosage 10 ml per 100 liters)
Effective treatments include levamisole, metronidazole or praziquantel. Metronidazole and praziquantel are especially effective when used as food soaks. Antibiotics such as nitrofurazone or erythromycin may also help prevent secondary bacterial infections.