I raised peppermint shrimps for a while. It was pretty labor intensive involving multiple glass culture dishes, phytoplankton and zooplankton cultures that had to be maintained etc etc etc etc ...
Peppermint shrimp CAN be done.
Now if you are talking cleaner shrimp that's a whole different story. There is something about the last molt prior to them settling that everyone had a hard time getting them thru. For me ... it was getting them past being stung to death by hydroids. No matter what I did and where I had my cultures I had hydroids.
I sterilized the water, the tools, used a non tank different part of the house. Washed my hands in vinegar before handling anything doing with the culture dishes, you name it.
If you dont have tons and tons of time to dedicate to this and don't mind having no results for a very very very long time you can try it.
Otherwise just enjoy the fact that your lovely cleaner shrimpies are providing free food for your tank
