Ohhhhh...you have shrimp...well, if you're okay with sacrificing maybe half the population then you should be fine! Jokes aside, what are your thoughts on a single betta/gourami? In a 50 gallon, there should be enough space for the shrimp to hide, as long as there's a very, very small shrimpivore population. Case in point, neon tetras will definitely go after the shrimplets. So adding one pearl gourami, or one betta, or one dwarf gourami might work out. Again, your mileage may vary based off of individual fish.
So many fish/plants/inverts to keep, not enough aquaria.