Do you have experience breeding and keeping shrimp?
The bigger the tank the better off you will be with any shrimp. The system is just less susceptible to changes the larger it is. I have a 5.5g mini-m that is popping out shrimp like crazy. Its all in how you work it.I've read that CRS prefer a 20g tank to breed in. IOW, if you put them in a 10g, then moved to a 20g, you'd see an increase in berried shrimps in the 20g. I am setting up a 20Long for CRS.
I'm thinking of breeding CRS in the 20 and putting intense yellows in a 10g. Or possibly Fire Red RCS.
I just don't see the appeal of the Blue Pearl or Snowballs, but I have never seen either in person.