Mealworm Frass Frass:4 lbs I add 10% extra to

I add 10% extra to account for loss due to shipping stress

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'What substrate should I use

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Mealworm Frass Frass:4 lbs I add 10% extra toFor super sack purchases, please contact Justin@midwestmealworms. com for freight info. Mealworms only output is their excrement known as Castings or Frass. This insect frass is 100% from mealworms! Mix with water for indoor and outdoor use Can be applied via a spreader for large areas Minimal odor! Dry and ready to use Please note: these are recommendations, your requirements may be different depending on your specific use and environment factors.