deleting individual particles

Ive got an asteroid field and a ship flying through it. Problem is, some of teh asteroids clip into it, and sometimes through the camera too.
I was wondering if it was possible to select individual asteroids (particles) and delete them from the scene?

To delete a specific particle convert them to real geometry (Shift+Ctrl+A) and then delete them

But then the particles dont move anymore :frowning:

Is there really no way to remove particles from a simulation?

If your collision object is set to Kill Particles, then any particles it touches are removed.