Black Soldier Fly Larvae (BSFL) are among the most farmed insects globally. Their welfare status and optimal rearing conditions are subjects of growing research.
The welfare status of BSFL is genuinely uncertain - their relatively simple nervous systems may or may not support morally relevant experiences. However, the scale of farming and the precautionary principle both support developing welfare standards. Optimal density, substrate, and temperature conditions that improve performance likely also reduce potential stress.