Though hardly anyone will believe it, the phenotype of halfsider/ two face on caridina shrimp will inheritable trait.
This is my double face tank and I have crossed Taiwan Bee halfsider with „normal“ Tibee.
Those Tibees had never had half siders / double faces in their pedigree but I got half sider (30% of offspring) Tibee/ Shadow Tibee in F1 generation..
It’s a fallacy, that apply inheritance rules of other animal species to shrimps, without proof.
All comments / own experiences are welcome 🙂