1. Cultivation of water quality: Leeches can grow in dirty water because they are not strict about living environment and water quality, but the density will be high if they are cultivated artificially. Try to keep the water clean and give leeches some dissolved oxygen. The water temperature should be kept at 65438 05 to 30℃. If the temperature is lower than this temperature, stop feeding. If this temperature is exceeded, the growth will be affected. Pay attention to the proper replacement of aquaculture water.

2. Feeding requirements. Generally, snails can be selected as natural feed, supplemented by earthworms and insects. You can also choose the blood of various animals to cultivate leeches artificially. Snails should be put into the culture pond at one time, so that they can reproduce naturally and leeches can feed freely. However, it should be noted that snails should not be put too much at a time, otherwise they will compete with leeches for living space. In order to make leeches grow faster, animal blood should be fed once a week and animal blood clots should be put into the culture pond. However, leeches should be cultivated in time to clean up the residue left by leeches after drinking, so as not to pollute the water quality.

3. Leech reproduction. In artificial breeding, it is necessary to build a breeding site for leeches, and put an appropriate amount of humus in the breeding site to increase the organic content of water. The prevention of leeches began in early May, and mid-May was the peak of reproduction. When it lays eggs, it should keep the environment quiet and don't walk on the shore to prevent leeches from being frightened and fleeing due to vibration.

4. Leech's feed requirements are extremely strict. In some areas, there are fewer mollusks such as snails and mussels, so it is necessary to buy some snails from other places in advance to prepare for supplementing leech feed in the future. After the introduction of leech varieties, some live snails were put into leech culture ponds for leeches to eat. When the amount is insufficient, you can supplement the blood and internal organs of some animals. The feeding method of leech feed is: first, put the solidified fresh animal blood or animal viscera into a plastic basket or bamboo basket, and hang the basket in the water by the pool with a rope for leech to suck. In summer, when the water temperature is high, animal blood or internal organs are easy to rot in the water. Throw it 1 time a day. If it is not used up, it should be taken out and dumped at night to avoid polluting the water body.