Start with the purpose
A display colony and a selective breeding project have different goals. Decide whether you are observing a color line, maintaining a stable group, or simply enjoying the shrimp.
Avoid choosing a number from a universal chart without considering aquarium size, filtration, and future offspring.
Plan for unknowns
Sexing juveniles can be uncertain, and breeding outcomes vary. A group may not contain the mix or traits you expected.
Keep a separate plan for offspring and animals outside your selection goal. Do not breed more shrimp than you can house or responsibly rehome.
Adjust from actual conditions
Track water quality, visible population trends, and maintenance workload. Expand only when the aquarium can support it.
A larger group is not automatically a better line. Care quality, records, and welfare matter more than maximizing head count.
Use these as general hobby references. Test your aquarium and confirm product guidance before making changes.