I've taken all the RCS out as of my similar setup once they had the babies. They slip back into life in the tank with no issues. Now I only have 2 RCS and 2 CRS left with eggs in there. There are soooo many babies and the CRS are pretty active. I won't be adding anymore until all the berried shrimp are no longer berried and the babies have gotten large enough to let out into the main part of the tank.
Hehe, great minds think alike. My plan was to put blue tigers in with my yellow shrimp, but someone pointed out that the blond baby tigers would be tough to differentiate from baby yellows and you'd have to wait a while to be able to see the difference.
The day I redo my main tank and get a rimless tank I plan on moving the yellows to my main tank with the CRS and put the RCS into a smaller tank by themselves.