Add to cart Crystal Red Shrimp (Caridina cf. cantonensis) Grade S $9.99 Crystal Red Shrimp are a selectively bred form of Caridina which supposedly originated in Japan some years ago. They are enormously popular due to their striking solid red and white coloration and can be a bit more delicate than some of the more common Neocaridina species, so are best kept by hobbyists with some experience keeping shrimp already. Crystal Red Shrimp prefer soft, lower pH water and do best at slightly lower temperatures. Breeders and serious hobbyist utilize a grading system for these shrimp, with higher grade specimens having a more solid white base coloration with specific shapes and patterns for the red bands. Our SS grade shrimp are selectively bred to these standards yet still have impressive amounts of deep red on them.