Black soldier fly larvae & bluebottle fly bedding


Established Member
Hi everyone! Super quick question – I just received an order of blue bottle fly spikes from rainbow mealworms and in the bag that they come in there is not a lot of bedding. I’m just wondering what I should get for them when I transfer them into a deli cup? The same question also applies to black soldier fly larvae as well.



Chameleon Enthusiast
For blue bottle flies, you don't need any sort of bedding. Just put them in a deli cup and allow them to pupate. Of course, put the extras in the refrigerator. From my personal experience, I haven't had much luck pupating BB out with an additional heat source. They seem to pupate out a lot healthier when left at room temperature. Though I'm still experimenting with heat. I used a ceramic heat emitter that dried out the air a little too much and caused a ton of flies to have severely crinkled wings. I used a heat mat with not enough of a buffer between the mat and the larvae and ended up frying the larvae. Now, I have a nice stream of flies. The room they sit in ranges from 75-80F. @javadi has a lot of experience with them, perhaps he should write a blog about flies or something. He's the lord of the flies 😄

I hardly use black solider flies, but I know that some people move them to a different container. I have had flies "hatch" in the container before, but I'm sure there might be better ways. I think @MissSkittles moves them onto coco fiber but I could be wrong.
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