Best roach nymphs to mimic ants?

[Matttoadman]

So I just got 6 Phrynomantis microps "West African Rubber Frogs". These frogs eat mostly ants in the wild. I currently have them a selection of very young nymph dubia and pantanal for them in the feed dish. They have eaten a few of the smallest ones. So I am looking for a suggestion of a roach that has very tiny non climbing nymphs. Red runners, Surinam any others?

 

[Randomjoe]

Little Kenyan, Goblin roach, maybe the Parcoblatta?

 

[lovebugfarm]

Red runners would work well collect their ootheca in a jar and then it's easier to feed them off once they hatch.

 

[Matttoadman]

Ahh little Kenyans are a good idea. Even the adults would be useable.  Lovebugfarm, could ootheca just be placed in the feeding dish to hatch or do they require special conditions?

 

[lovebugfarm]

I think as long as they receive a misting fairly frequently maybe 2 times a week minimum that should work.