First of all, we must get some shrimp eggs. In the past, dried shrimp eggs of Fengnian shrimp were all imported in pounds. Such brands as owls, high-solids, etc., and prices were as high as several thousand yuan; Now there is a can of 15 cents to sell about RMB 80 to 150 yuan, which should be sufficient. 1. Make an incubator. Put the bottle (1.25 liters) upside down, do not cut off the bottom to prevent the water from splashing when hatching, poke a hole in the ice chisel to allow the air to drain, make a hole in the lid, insert the rubber hose, and then Close hoses and lids with silicone to prevent water leakage. 2. Seal the hole with tape and add salt water. Freshly prepared brine should be used for each hatch. Add 1 liter of water (tap water) to 15 grams of salt, shake it slightly to dissolve it, and finally add a small spoonful of brine shrimp eggs from the bottle. 3. Place the PET bottle upside down on a plastic cup. A small hole is made in the bottom of the cup. The hose is then threaded out. The other end is connected to an air pump. The pump must be placed higher than the incubator to avoid backflow of the salt water. 4. Rip off the tape and start pumping in. The purpose is to make the water roll violently. No need to use the stone, the shrimp can be hatched after 24 hours. Collecting shrimp 1. At about 27 to 30 degrees C, about twenty-four hours later, most of the shrimp have already hatched. At this time, you can prepare to receive shrimp seedlings! First tape the upper hole and remove the bottle from the bottle. (At this point, you can change to another bottle and continue to incubate.) 2. Let stand for about 20 minutes while turning off the light with a flashlight. Gradually it will be divided into three layers. The upper layer is the hatched empty egg shells, and the lowest layer is the eggs that have not been hatched. The hatched shrimp seedlings are located near the top of the unhatched eggs and can see a large group of red to transparent shrimps constantly shaking. Shrimp has phototaxis, with the flashlight shining light to attract the shrimp to the side of the hole, and then tear off the tape, and then it is filtered in another container or directly with a metal filter that filters the tea leaves. 3. Because it is salty and salty, it is not suitable to feed directly. At this time, the shrimp should be soaked in plain water for 15 minutes to dilute. Finally, use a dropper to suck out the food. The shrimp can survive for about 6 hours in freshwater. If you use the fresh shrimp to return to the refrigerator to refrigerate, you can live for one night. If it is at about 16,7 degrees C, you can survive 40 times. Hours or so, so consider the amount of hatching. Short larvae can be fed once a day, preferably 2 or 3 times.
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