The head tumor of Lanshou goldfish normally begins to develop about 3 months. If the feeding method is proper and the constitution and genes of Lanshou goldfish are good, they may have head tumor within 2-3 months. There are also poor constitution or genes, and the time for developing head tumors will be longer, but they will generally develop within one year. The development time of head tumors of Lanshou goldfish has a great relationship with their genes and feeding methods. If the genes are good and they are fed normally, they will develop quickly. If the genes are poor and the feeding methods are wrong, their head tumors will develop slowly.
2. What should I do if Lanshou goldfish doesn't have head tumorHead tumor is the biggest characteristic of Lanshou goldfish, and it is also important to them, which can not only improve their ornamental value, but also play a great role in their body balance. If they don't have a head tumor, the breeder can take some birth methods to help them develop a head tumor. For example, planting some moss in fish tanks is of great benefit to their head tumor development. You can also feed more animal feeds, such as bumper shrimp, red worms, water fleas and so on. You can also change water frequently and use new water to stimulate them to develop head tumors.