Are you referring to this kind of thin dace? I come from a remote mountainous area in Guizhou, and there are still fish there. They usually spawn in winter, and there are fry in the water in April and May. Breeding can only occur not far from the source of water, because this fish has a very high demand for oxygen. Usually it can only survive in clear water. This fish is omnivorous and usually mainly eats the moss that has just grown on the rocks. It will also eat eggs, maggots, earthworms, etc. from other fish.

If necessary, I can summarize it for you