Fish farming with insects: In areas with abundant insect resources, several black light lamps can be installed on the surface of fish ponds. Each lamp can attract 5-6 kilograms of insects such as mosquitoes, flies and roundworms for fish to eat each night. Or hang a few porcelain boxes on the surface of the pond, and use animal scraps to attract and raise the fly. A large number of worms climb out of the box and fall into the water to become bait. Artificial feeding of crickets, yellow mealworms, etc. can also be adopted to feed fish. Generally 2 kg of insects can grow 1 kg of fish. Fish fish: fish fish refers to the rational polyculture, the method of recycling fish feed. In general, fish, carp, grass carp, carp, carp, squid and other filter foods, herbivorous, carnivorous fish rational polyculture can make full use of the nutrition of different water layers. The excrement of fish can be used as fertilizer and water. The plankton that reproduces can feed babbles and earthworms. The residue of food can provide bait for alfalfa and cockroaches. Dead fish and wild fish can also provide baits for cod and other fish. It is worth noting that it is necessary to distinguish between the ratio of the main fish and the set of fish. Blue-green fish: Use herbage and green feed to raise herbivorous fish. Sorghum and ryegrass can be used for cultivation in ponds or fodder fields. In general, sudan grass yields 11,000 to 12500 kilograms per mu, and ryegrass yields 7,000 to 9,000 kilograms per mu. On average, every kilogram of green grass grows 1 kilogram of fish, and it is not easy for the fish to eat high-quality green feed to obtain disease, which can save fish disease diagnosis and treatment costs. Fertilizer fish: fish can be deep in front of the pond before the application of basal fertilizer, fertilization water quality, general maturity of 200-300 kilograms per hectare of manure or human waste about 100 kilograms; pond should be based on water quality, weather and fish Appropriate topdressing for growth, usually 50-70 kg of fermented manure per acre per day, Quanchiposa. Fire Extinguisher,Automatic Dcp Fire Extinguisher,Co2 Type Fire Extinguisher,Water Mist Extinguisher NINGBO TOMAN IMP. & EXP. CO., LTD , https://www.tdotmfiresolution.com