eSHa-ndx is an anthelmintic for ornamental freshwater and marine fish. It is effective against parasitic nematodes like Anisakis Camallanus, Capillaria, Pseudocapillaria, Eustrongylids, Oxyurids etc. These parasitic nematodes, also known as roundworms are generally found in the intestines of fishes. Symptoms include weight loss, reduced apetite, and in the case of Camallanus, worms protruding from the anus.  eSHa-ndx also kills Planaria and non-parasitic nematode worms.   eSHa-ndx is well tolerated by all fish, and eSHa did not observe negative effects of crustaceans. However, this product should not be used in aquariums containing corals, anemones, sea urchins, clams, snails, etc.