Ornamental fish farming is the most profitable, but because it is small-scale aquaculture, it requires good farming experience and meticulous and patient work. At present, tropical ornamental fish and seawater ornamental fish are mostly imported species except goldfish and koi fish. Up to now, the common species of ornamental fish introduced into China and able to reproduce and produce are as follows:

1, CYPRINIDAE (japanese koi, horsetail, rose needless, rainbow shark, etc. )

2. Floraceae (flower (peacock) fish, broadsail fish, swordfish, rose swordfish)

3. Lycopodiaceae (angelfish, Lipan fish, Lohan, etc. )

4. Catfish (multi-fin catfish, red-tailed catfish and glass catfish) should be updated.

1, vigorously promote pollution-free healthy farming. Aquatic products will eventually be used for consumption, and food safety must be paid attention to in consumption. Green is the trump card in all agricultural products. At present, what consumers most welcome is natural, non-toxic, pollution-free and drug-free pollution-free aquatic products, which requires the upgrading of farming methods, abandoning the previous concept of "fast" and "big" and producing green pollution-free aquatic products. The reform of aquaculture mode should make a fundamental fuss. The selection of aquaculture waters, the breeding of fish species, the use of feed and fertilizer, and the use of fish medicine to prevent and treat fish diseases must be carried out in accordance with the relevant standards stipulated by the state, so as to realize the quality control of aquatic products from ponds to tables.

2. Develop mixed culture according to local conditions. It is necessary to liberate from single-type farming, make full use of water resources and develop scientific mixed farming. For example, mixed culture of filter-feeding fish such as silver carp and bighead carp in aquaculture waters can play a role in purifying water quality; Adding a small amount of Siniperca chuatsi into the adult fish culture pond can not only remove the wild fish in the pond, reduce the competitive index of the main fish, but also increase the output of Siniperca chuatsi without feeding. Can also be changed from single fish culture to mixed culture of fry, fingerling and adult fish; It can also carry out comprehensive management of fish and pigs, fish and poultry, fish and fruit, fish and rice, and fish ponds.

3. Increase the development of large water surface. Large water surface has many advantages, such as large water space, strong fish activity, rich natural bait and less pollution. It is very suitable for the production of pollution-free aquatic products, and it also takes time for purse seine, blocking net, cage and other breeding methods.