I am not intentionally raising tadpoles. Instead of rain barrels I have 110 and 180 Tuff Stuff stock tanks. My well is not adequate for my needs. The frogs found them and now I have tadpoles. I have seen two or three froglets that act sick and then die. Is this disease? Heat? Walnut leaves in the tank. It makes me sad to see them; but to tell the truth I have enough tadpoles to populate the county if they all live.