Cambarellus Mixing

I am currently working on mixing different members of the Cambarellus genus after having seen a contact/breeder in Germany produce several gorgeous hybrids within this group.

I'm currently working with:

-Cambarellus montezumae
-Cambarellus patzcuarensis sp. orange
-Cambarellus shufeldtii

Thus far, I've only had semi-success with a male shufeldtii and a female montezumae. In which the pair successfully mated and the female produced a berry, however the female mysteriously died before the berry came to term. I hoping to acquire more members of this genus (mainly patzcuarensis sp. chocolate and puer) to try different hybrid results.