most of them should survive until they are eaten.
not encouraged to pour all in at one go but some people does do that.
If you do that, you will notice your fish might be jerking or develop ich for a few days, but they will recover very shortly.
Maybe a little at a time over 2 - 3 days will be better.
If you have refugium, you can pour inside here so they will not be eaten by the fishes and can reproduce there to give the fishes an ongoing supply of live food.
If not, then maybe you can use a syringe and inset them into rocks crevices where hopefully they can reproduce some pods before they get eaten up.
Ultimately without a safe place to reproduce, these pods will be depleted by your fishes regardless of how many bottles you pour in.