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What are the improved varieties of Jupu and Jingxi?

Jupu and Jingxi improvement may refer to different betta species.

Jupu may refer to Jupu, a China Duyu, which is a large freshwater fish with ornamental value.

Jingxi improvement may refer to a kind of fork-tailed fighting fish artificially improved in Jingxi, but there is not much information about Jingxi improvement in the fighting circle. Please help the local people in Jingxi a lot.