Treat names as descriptions
Blue Dream, Blue Jelly, and Blue Velvet are common hobby names for selectively bred Neocaridina appearances. Sellers may distinguish them by shade, opacity, or lineage, but labels are not a universal registry.
Lighting, substrate, age, and camera settings change how blue appears. Compare pictures taken in similar conditions and ask what the breeder means by each name.
Buy for the colony you want
If maintaining a particular appearance matters, purchase from a breeder who can describe the line and keep that color group separate. Offspring can vary, especially when unrelated lines are mixed.
Care needs are still based on stable water and tank conditions, not the color name. Do not pay a premium based only on a heavily edited image.
For your own tank
Compare actual breeder photos and ask how the line is maintained before choosing between these names. A label may reflect lineage as much as shade. If color consistency matters, keep the chosen line separate and expect variation among offspring.
Use these as general hobby references. Test your aquarium and confirm product guidance before making changes.