I agree with Mark. You cannot trust a Creobroter at this stage, especially the females, and even if there is present a good supply of food. It is just their nature. There is no heart to be nice. Great habitat and pics!
Actually,Creobroter pictipennis are the only species of Creos I could keep all together with no problem.
I have C. meleagris,apicalis,elongatus,gemmatus and pictipennis (Pseudoharpax also ).
I can tell they all get very agressive when mating is coming except for pictipennis.If there enough food you can keep them all together.So I will stick on this one!
I could also keep Acromantis formosana(NO cannibalism at all )all together and a small Pseudoharpax tribe.Same thing if there is enough food it is fine!