How to prepare fish medicine? Introducing several folk remedies

In fish disease prevention and treatment, if green plants or Chinese medicinal herbs can be used locally to prepare fish medicine, it can prevent and treat common diseases such as red skin disease, enteritis, and gill rot, avoid toxic side effects, and save costs. Several simple preparation methods for fish medicine are introduced as follows:

Three Yellow Powder is prepared from 3 Chinese medicinal herbs - rhubarb, coptis, and skullcap - in a ratio of 5:3:2. When using, add 1 kg of "Three Yellow Powder" and 0.4 kg of table salt to every 10 kg of fish compound feed, add an appropriate amount of water, make into granular medicated bait and feed, once a day for 5 consecutive days. The treatment effect is remarkable in the early stage of the disease. After the fish disease enters the late stage, since the fish have stopped foraging, feeding medicated bait has a less ideal effect. Three Yellow Powder should be prepared into a 1.5 ppm solution and splashed over the whole pond. If combined with splashing 0.5 ppm copper sulfate, once a day for 3 to 6 consecutive days, good results can be achieved.

Gallnut: Use 2 to 3 grams of gallnut per cubic meter of water, decoct the juice and evenly splash over the whole pond. Fresh gallnut leaves collected can also be piled as compost in a corner of the pond at 15 to 20 kg per mu. After 10 to 12 days, stir the pond water once, and after 1 month, stir once a month. The above method can promote the gallnut soaking liquid to penetrate into the water body, thereby achieving the effect of disinfection and sterilization. It has good effects on preventing and treating red skin disease, enteritis, gill rot and other diseases.

Masson pine leaves: Use 1.5 kg of masson pine leaves per mu, crush them, add 50 grams of table salt, mix with green feed and feed. Alternatively, take 40 kg of fresh masson pine leaves per mu of water surface, cut and grind them finely, add 25 kg of water and splash over the whole pond. Another option is to use 50 kg of fresh masson pine per mu of water surface, soak them at the pond water inlet and turn them over once a day.

Tobacco stems: Take 5 to 7.5 kg of dried tobacco stems, soak them in 20 to 30 kg of clean river water in a bucket or vat for 2 days, then splash over the whole pond together with the residue. Before each stocking of fish or during periods of high fish disease incidence, it can be used to clear and disinfect the pond once, effectively preventing the occurrence of fish diseases. After fish diseases occur, tobacco stems can be soaked in water at 50 to 100 kg per mu, then add 15 to 20 kg of lump quicklime and soak for 1 day, and splash evenly together with the juice and residue. The treatment effect is obvious.

Castor leaves: Use 2 to 3 kg of castor leaves (or stems) per mu, chop and pulverize into a slurry, and splash evenly over the whole pond, which can effectively prevent fish disease outbreaks. After fish diseases occur, use 4 to 5 kg of castor leaves per mu, chop or pulverize into a slurry and mix into the bait and feed for 3 consecutive days, once a day, with good treatment effect. To ensure the efficacy of the medicine, fish feeding should be stopped before feeding the castor leaf slurry. The slurry should be splashed evenly, and this should be done on sunny days.