![](https://blacksoldierflies.com/wp-content/uploads/2023/12/fish_skeleton.png)
Sludge Management – BlackSoldierFlies.com
A mix of fish carcasses, uneaten aquafeed, and fish feces does not sound very appetizing even for black soldier fly larvae. Indeed, according to a recent study they did not do particularly well on aquaculture sludge. However, mixing the sludge with other substrates significantly improved the situation.