Hey all, I recently came into a job at a popular cafe, and because of this, I have a basically endless supply of free espresso grounds at my disposal, should I want them for any reason. I was already considering using it for potted plants, especially tomatoes, as I hear they come up especially yummy!!!, but I was wondering if anyone has tried it as bedding for their BPs? a cursory Google search doesn't turn up much on the subject, just that it can be used as a pest repellent when burned (as most things will that produce a thick smoke).

Has anyone tried this or have any further insight as to its possibilities? Thanks in advance for any input! I obviously don't want to do it if it could be harmful to my girls, but it seems like an efficient way to have more naturalistic terrariums, should I decide to go back to a loose substrate (they're both on paper towels at the moment.)