Hemorrhagic Illness is often caused by the fish rubbing its barbels from the tank right up until they develop into infected. This infection will happen rapidly if their water is weak excellent too. You may notice this behavior in captivity. Oftentimes, they do it to Mix in with their surroundings. https://rylanzfdhf.csublogs.com/37761712/5-tips-about-arowana-fish-you-can-use-today