Potassium permanganate can kill some parasites, but it is not recommended because of the strict requirements for concentration. Generally, there are two kinds of parasites that harm fish, one is ectoparasite, the other is endoparasite. The former can cause congestion on the surface of the fish, which can be removed with tweezers and other tools, and then disinfect and sterilize the wound. The latter will cause the fish to be emaciated and weak, and need to be treated with drugs such as white tablets.
are the common parasites? 1. Cryptoflagellate: Cryptoflagellate generally parasitizes the gills of fish. The body of the parasitized fish often turns black. At the same time, the gills are bright red, and there is gray-white mucus on them. For this parasite, it needs to be soaked with a mixture of copper sulfate and ferrous sulfate, usually for about 10-30 minutes.
2. Trichodinids: Trichodinids attack the body surface and gills of fish and absorb nutrients from them, resulting in emaciation of fish. They also move out of groups and move slowly. When the fish is found to be infected, it is necessary to soak the fish in 2% salt water for about 5-10 minutes.
3. Ichthyophthirius: Ichthyophthirius is a common parasite that endangers fish. It can cause fish to suffer from white spot disease. After the disease, white pustules appear on the surface of the fish, and they can not find food. Treatment is also very simple, as long as the water temperature is slowly raised, if it exceeds 25 C, it can limit the growth and reproduction of parasites, and if it exceeds 28 C, it can be eliminated.
