What I keep right now would cross breed. There are people that put a couple species together that will not. My concern is water parameters. The ones I am keeping are in tap water and do well the ones that will not cross with these use RO or at least half RO. SO is it a win, win situation with putting more than one type of shrimp in a tank. To me I would say no. Losing shrimp to water parameters or cross breeding. To me Dave it is just like fish species to keep them true keep them separate.