Anti Crustacean Parasite (No 12) will eradicate anchor worm (Learna sp.), fish lice (Argulus sp.), gill maggots (Ergasilus sp.) and fish leeches. If left untreated these parasites will cause life threatening damage so should be eradicated quickly.
We recommend you use this treatment when Fish with parasites show the following symptoms:
Flicking and rubbing against objects
Rapid gill movements
Red, irritated areas of the skin