Originally Posted by moridin777
But Jaheira has one of these modified tadpole in the bottle, and the artifact destroy it and it disappeared.

I did wonder the same thing when I first watched this and, this is pure conjecture on my part, I believe it is because the tadpole in a jar isn't attached to anyone yet.

Jaheira also doesn't say whether it is one of the special magical tadpoles or not, if I'm remembering right.