There's an interesting article in the Post today about the farming of black soldier fly larva. It's now used in some high-end fish foods, including Repashy's Igapo Explorer and Fluval's Bug Bites. https://www.washingtonpost.com/business/2019/07/03/maggots-could-revolutionize-global-food-supply-heres-how/?utm_term=.5a0acb72f436