1. When building ponds and using canvas ponds to raise fish, you should choose fields close to water sources, open terrain and sunny ventilation to build canvas ponds and disinfect them to avoid harmful substances remaining on the canvas and affecting the growth of fry. And in order to clean the water, you should install a water purification device next to the canvas pool to avoid water pollution.

2. Put the fry in the canvas pond to raise fish, mainly carp and goldfish. First, select healthy, lively, harmless and disease-free fry, disinfect them with light salt water or diluted disinfectant, and then put them into the canvas pool. Pay attention to the early breeding density should not be too high, so as to avoid the death of fry.

3. Breeding method Feed fish 2-3 times a day during the breeding period, supplemented by animal feeds such as fish, shrimp, earthworms and animal offal, so that fry can grow better. Pay attention to cleaning up the food residue in the pond after feeding for 2-3 hours every day, so as to avoid the growth of green algae or moss on the canvas wall, which cannot be removed.