... , such as snail, mussel, frog eggs, tadpoles, and part of the aquatic insects. The tea saponin is soluble in alkaline water, add a small ... of fish diseases Tea seed meal is also the good drugs of prevention of haemorrhagic disease and bacterial gill fish, red skin, enteritis ... only can kill the fish was and gills of the pathogen, but also can kill the parasites (eggs). Best stick with the 2 to 3 times ...