Lately when my group of blue and black auratus have been laying eggs the tadpoles have been coming out deformed. They start off normal and then when they become tadpoles in the egg they are just a perfectly round clear bubble with eyes and a tale. when they get older you can see all there insides. they live for about 2 days in the water then they die. i never had this problem before. just wonderinbg if anyone else has this problem or can tell me how to fix it. thanks.