... snail, mussel, frog eggs, tadpoles and part of the aquatic insects. Tea saponin is soluble ... pond disinfection with low drug costs, make the best of easy, rapid detoxification, no residual injury, ... (eggs). Best stick with the 2 to 3 times a month, not the incidence of fish 3, ... Prevention have a preventive effect and control is also very significant effect of ...