I only ended up with 8 ladybugs on my plants. I didn't order them, I just picked them up from outside if I saw one. You can order them in bunches of 500 to 1000. I certainly wouldn't release that many indoors! The ones I had stayed on my plants for about a month then disappeared. I don't know if they got out of the house or found a nice place to hibernate. They are perfectly harmless (unless you are on their menu) so I am not too concerned about it. I noticed they stayed on the plants that I mist...they like moisture.