Would it be safe to add some to my well established Cherry shrimp tank? I don't know if being slightly larger they may bother the cherries. The tank also has 4 peppered corys but i think they would be fine.
That would be fine. I house my dwarf cajuns with snowball shrimp, Amano shrimp, Atyopsis moluccensis all in a 30 gallon long with loads of hiding spots. Be sure to add a sufficient amount of hiding spots.