... Tea saponin is soluble in alkaline water, add a small amount of lime in the use, efficacy better. Due ... high turnover, etc., not only can kill a variety of low-quality wild hybrid fish buried in the mud ... , and can also kill a variety of frog eggs, tadpoles, leeches, and snails, mussels, ... 15 kg to 20 kg. First computing a good amount of tea meal into the tangtou cement pond ...