Nano fish will attack shrimp egg, and some nano fish are aggressive they will attack shrimp legs.
RCS is the cheapest of all shrimp so if you really want fishes, then go for it but remember your population will suffer, without enough plant you won't even see any increase in your shrimp population.
My local fish store that are expert in shrimp and planted tank they all advice me to never get any fishes when I see new nano fish in stock. They also keep all their shrimp in shrimp-tank-only.
Last edited by somewhatshocked; 02-19-2013 at 10:19 PM.
Reason: Inappropriate language