I am sure that most people already know about this method of composting and fish-food produciton, but I came across this decent video of how to make a DIY Black Soldier Fly composter. The larvae from these systems consume a huge amount (really huge!) of waste food (including meat) and turn it into:
1. Much less waste (and a kind of fertiliser liquid gold)
2. Big fat soldier fly grubs that are about 60% protein and fantastic free fish food.
These systems can be put together really easily and we would recommend that no aquaponics systems would be complete without one of these! Freeze the grubs and you have a ready made snack for anytime. Just don't get them mixed up with your mixed rice grains.
Here is the video... quite a funny presenter: