After the blue-tailed ash hanger spawns, move broodstock into prepared new containers if possible. If a new container cannot be found and a new living environment cannot be provided for the broodstock, the water quality during the spawning period should also be replaced by half to keep the water environment stable and healthy.

Necessary anti-inflammatory and disinfection measures should be taken after the blue-tailed ash hangings lay eggs. Methylene blue, potassium permanganate or table salt can be used to disinfect to prevent the infection of the blue-tailed ash hanging from worsening.