The last time this was discussed, this is how I basically understood it:
Almost all of the domestic Bee/Tiger/Tangerine Tiger shrimp are hybrids at this point.
Calling a domestic Bee Shrimp a C. cantonensis is a bit like calling a chicken a "junglefowl".
Some genetic analysis was performed and basically, all of the Bee/Tiger/Tangerine Tiger are primarily C. cantonensis. This doesn't mean that they are entirely C. cantonensis, they are hybrids. It is just that the "base genetic stock" for all of the domestic strains of Bee/Tiger/Etc is C cantonensis.
Wild-type C. cantonensis
The mother of all of these shrimp. Honestly doesn't look much like a bee or a tiger. It looks closer to a "tangerine tiger".
The physical characteristics of this shrimp seem to be the most prevalent in all of our domestic shrimp. This seems to be the domesticated shrimp that was originally developed and was then hybridized to produce all of our other pet shrimp
Wild Bee Shrimp- C. logemanni
These are a unique species in the wild. They look very similar to the domestic species, with a greater variation in coloration. However, our domestic species has the traits of C. cantonensis, so this was probably crossed into C. cantonensis for stability purposes
Wild Tiger Shrimp-C. mariae
These are a unique species in the wild. They look very similar to the domestic species, with a greater variation in coloration and striping density. The wild tiger was almost certainly crossed with a domestic bee to produce a new shrimp that looked like a tiger(had the tiger stripe genes), but the stable domestic genes of a bee shrimp Wild Tangerine Tiger- C. serrata(cancelled)
This gets a bit hairy, but there does seem to be a unique wild species that this species was based on. However, all of the domestic species and their unique colors are just bee shrimp. Good luck going further. The coloration doesn't seem to originate from any wild-type, but the "whole body" coloration may have come from a gene expressed in the wild shrimp.
" Super Tiger, Red Tiger", etc
These are all just strains of the "tiger shrimp" line. How they develop them could be a bit of a mystery. As I said, the actual wild-type has a lot of variability in the coloration and striping. They may have grabbed a wild-type with the genes they wanted and bred it back into the strain OR they might have slowly bred them from the first domestic "tiger shrimp".
Tangerine Tiger, Aura Blue, Tupfel Shrimp etc
These are claimed to be another Caridinia species. They might have been, but the domestic ones are "bee shrimp". They do, however, show a different color variability which is more similar to the neocardinia(whole body color with wide-ranging hues and intensity), rather than stripes of varying thickness/color but nearly-constant opacity(such as that found in bee/tigers).
Paracaridina
These all seem to be different species with no cross-breeding, though there are quite a few of them out there. Even if they are called "blue bees", it was just an unfortunate accident in naming
Variability in water conditions amongst tangerine tiger/bee/tiger/etc
Given that these are all essentially the same shrimp, this seems to be based much more on where they were bred. German lines seem to prefer harder water lines while Asian breeder-developed shrimp prefer soft water. This is my own speculation and not based on any actual information, but it makes sense.
German- Tangerine Tiger/Tiger
Asian - Bee/Tiger
http://easyshrimp.blogspot.com/p/caridina-cantonensis.html
Serious Fish Article