Saprolegnia. The pathogens are saprolegnia and hyphae. The hyphae are slender and branched. One end of them is like a root, and they are born in the skin of Hegel's wild colorful body surface, and the rest are exposed outside the body. The hyphae are up to 3 cm long, gray-white and soft like cotton wool. In the early stage of the disease, the mucus on the body surface of Hegel's wild qicai increased, forming a layer of white nebula. In the later stage of the disease, the mycelium penetrates deep into the skin, and the mortality rate is high.

You can choose 0.03g malachite green or methine Base blue, dissolved in 10 kg of water, soaked in Hegel wild colorful for 3-5 minutes, rinsed with clean water, and placed in the aquarium. It takes multiple doses to heal.