1. Cause: The red body of Manlongyu may get Saprolegniasis. The main cause of Saprolegniasis is bacterial infection or poor water quality. The initial symptoms of Saprolegniasis are white spots on the body, and later, red patches will appear in severe cases. After suffering from Saprolegniasis, Manlongyu will appear to rub the tank, poor mental state, reduced activity, reduced appetite and so on.
2. Treatment: The breeder needs to fish out the diseased fish first and put them into a separate container for breeding. Because Saprolegniasis is contagious, once Saprolegniasis is found, it should be isolated at the first time. After isolation, take a medicated bath with potassium permanganate solution, which can be restored in about a week.
1. Reason: The body of the dragon fish will turn red after being frightened. There are many reasons for them to be frightened, such as speaking loudly or beating the fish tank hard.
2. Treatment: The breeder needs to ensure that the surrounding environment is quiet, so that the Arowana can recover by itself.
1. Reason: Manlongyu will also change color in the new environment, or the amount of water changed is too large, which will cause them to have a stress reaction, and the body color will also turn red.
2. Treatment: Breeders need to ensure that the water temperature and quality are stable, and minimize the factors of instability. After the Arowana adapts itself, it will regain its body color.
