The following introduces several common and relatively advanced varieties.

Gong goose, egg breeder. The defective rate is high, and it once disappeared from the market and was on the verge of being lost. It is said that during the Qing Dynasty, they were raised in the imperial palace and were not allowed to be raised by the public. The 9-10cm ones with decent quality cost 20 (price at Beijing Shilihe Flower and Bird Market), and the ones with better quality can cost astronomical figures.

F1 Thai lion, with good literary skills. Because they are imported, they are expensive, but now they are bred more domestically and have strong vitality, so the price has dropped sharply.

Lanshou, egg clock. The main thing is to look at the condition, and the price is also an order of magnitude difference between good and bad condition. Prices range from 5 yuan to 500 yuan. Lanshou’s appreciation standards are also available online.

There are also more distinctive fish species, and the prices are also extremely high. For example, Japan's Tosa Gold, Britain's Bristol, Pan's Xiaowei Shou, Rugao Butterfly Tail, Wangzi Tiger Head, etc. If the goldfish has a good color, it will be popular and expensive, such as panda, cow, unicorn, orchid, cherry blossom, magpie, deer, etc.

However, if you are a novice, it is recommended to raise a relatively simple species with strong vitality, preferably a cultural species (Thai lion, national lion, gilt) or even grass goldfish.