Black Soldier Fly

I've been trying to attract black soldier fly larvae (BSFL) for some time now. First, I started with rotten coconut. That dried out, moulded, and ended out nasty and disgusting. I then tried reconstituting corn, putting it in the coconut to rot, and attracting BSFL that way. The corn moulded and ended up not being colonised. Finally, I had some old cabbage pickles that were going rancid in the fridge. I put those in the coconut and kept them wet but under a cover. After a week or two, I spotted what I believe to be BSFL. since then, I've gotten a bucket and started feeding them outside the coconut. While they've not completely colonised the bucket, they are slowly eating our biodegradables. See disgusting picture below :) (the BSFL are the white things in the middle of the bottom third of the picture)

Of course it doesn't disgust me, I'm the proud father of highly useful maggots :)