eSHa alx is a veterinary medicine for ornamental fish against parasitic species of Crustacea (Maxillopoda), such as Argulus (carp lice), Lernaea (anchor worm), Ergasilus (gill lice), Salmincola (gill lice), etc. The parasitic Crustacea occur on and in the skin of fish and on the gills.
There are a few noticeable symptoms of parasitic Crustacea:
- Trying to jump out of the aquarium/pond;
- Scraping the entire body along stones and the bottom;
- Visible areas where parasites have bitten (which subsequently become white as the skin dies);
- Pale gills;
- Listless behaviour;
- Skittishness;
- Weight loss; separating from the group;
- Not eating.