I bought mealworms from Armstrong Cricket Farm: https://www.armstrongcrickets.com/ge...-insects/worms

Never had a problem with them. I got tied of raising mealies, though I loved the little guys. Black soldier flies are my go to now. I take the poop to feed my European nightcrawlers. That something to keep in mind. You could take your mealworm poop and use it for feeding nightcrawlers. Then take the worm poop and fertilize your garden.