Sera Nematol is a very effective remedy against nematodes such as Camallanus, roundworms (Capillaria) and discus pinworms (oxyurids) for fresh and salt water fish. A sensational R & D success: sera med Professional Nematol is the first ornamental fish treatment against Nematodes that may be sold freely. It is based on a patented Emamectin/solvent complex, highly effective and easy to dose. sera med Professional Nematol is particularly effective against Camallanus and round worms of the genus Capillaria, which mainly occur in angelfish and discus.