Do superworms need to burrow?

[TerryG]

I got a bunch of superworms and had read in several breeding how-to's that you can use whole oats for substrate.

The previous batch I'd ordered I put in oats and they seemed fine.

Before I got the new batch, I read that you're supposed to blend the oats to make it easier in the worms. I've had this new batch for a couple of days on the blended oats and they all seem to like hanging out on top. I tried burying a few and they dig up to the top again.

I do have some raw baby carrots in for moisture but the worms on top aren't just hanging out by the carrot chunks. Does anyone know why? What am I doing wrong?

 

[CooperDragon]

They may want the moisture from the carrots. Oats or bran or a mix is fine for substrate. How deep do you have it? I'd set it at around an inch or two deep so they have plenty of space.