Decide what success looks like
A community tank can hold adult Neocaridina alongside some peaceful, small animals, but tiny shrimplets are vulnerable to predation. If the goal is a growing colony, a shrimp-only tank with snails is the simpler path.
Aquarium Co-Op reports success with some small, peaceful tank mates, including snails and certain nano fish. That is keeper experience, not a guarantee for every fish, individual temperament, or tank layout.
Provide cover if you mix species
Dense moss, fine-leaved plants, and hardscape gaps give young shrimp places to hide and graze. Even with cover, expect some babies to disappear when fish share the aquarium.
Avoid large, predatory, or highly active fish. Research adult size and feeding behavior, and watch how tank mates respond after introduction. A fish that ignores adults may still hunt young.
Keep water needs compatible
Compatible behavior is only part of the decision. The animals must also suit the same temperature, hardness, and maintenance routine. Choose tank mates that match the shrimp's actual water, rather than altering water for a species that does not fit.
For a first colony or selective breeding project, separating the species protects both the shrimp population and your ability to track offspring.
Use these as general hobby references. Test your aquarium and confirm product guidance before making changes.