is this possible

[augiedog55]

I'm praticing growing seedlings before the season starts next spring. I new to this. I put some promix out of a bail i had and crumbled it up and sprouted some tomato seeds in it. They came up today and i put them under lights. Before i did this i used a spray bottle to moisten them and i saw what looked like a flea beetle come out of the promix when i moistened it. How could a flea beetle get in the promix that is in my garage? Has this ever happened to any of you.?