Hissers and cannibalism the test finally begins!

[demon amphibians]

What is the purpose of mixing these two roach species in one enclosure?

I personnally have no use in doing so. My colonies are far to large and it would make sorting impossible. However I have been asked this question many times from people who want the two species but only want one enclosuer they always ask, "if the two have the same housing requirements why not keep them together if they are small in number and no need to sort?" The leading argument from others is that the hissers will eat the dubia. I am one who thinks that the hissers will only eat the dubia if the proper amount of moisture and food is not provided. But my opinion isn't a solid answer. So a member suggested I do a study. Well granted that was several months ago my apologies for putting it off for so long.
I am also putting together a personalized care sheet and this is a segment I would like to add to it.