WORST Invasive Parasites Found in Fish

Take a look at some invasive parasites! From zombie fish to flesh eating parasites to tongue eating lice and holes in fish heads, these parasites are really dangerous! SUBSCRIBE for the latest videos: ` 4. Hexamita (hole in head) Just missing out on being in the top three is a parasite known as ‘hexamita’ which mainly causes the disease ‘Head and Lateral Line Erosion’ or simply ‘Hole in the head’. As hexamita starts its life inside the fish, it will reside in the intestinal tract and move throughout the host invading vital organs including the kidneys. In order to spread its spores, it needs to escape through lesions made in the head of the fish - which is then known as ‘Hole in the head’. Starting out with small indents in the head; the parasite causes initially mild conditions - including discolouration and those lesions I mentioned earlier. However, when left untreated, these small holes in the head grow larger and deeper - attracting bacteria and fungi to i