A friend of mine has a "singaporeshrimp" that has eggs. is it true that they will need tobe born into brackish water? or at least raised in said water?
Depends on what the "Singapore Shrimp" really is - if it is the usual called wood/twig/donkey/Singapore shrimp which is relatively large, a filter feeder with 4 fans on its forward legs, then it is straight FW. Amano Shrimp fry seem to need some salt, many or most Macrobrachium shrimp as well, but not all shrimp.