These chicks are only about a week old. In their little water trough I find a clear/translucent worm, about 1-1/2 inches long, and I'm freaked out. I called the Co-Op where I bought them; they said wormer medicine is for hens, not chicks, who are not known to get worms. Well, what am I supposed to do? They are not acting sick, but yuk! Any ideas? Anybody?