Cherry Shrimp

The Cherry Shrimp is a small freshwater decapod crustacean, not a fish, native to ponds and slow streams in Taiwan. It belongs to the family Atyidae, the same group as many other filter- and detritus-feeding freshwater shrimp. The vivid solid-red coloration commonly seen is the result of selective breeding from the naturally more translucent, brownish wild-type Neocaridina davidi. Wild populations in Taiwan remain present, and the species has become one of the most widely kept ornamental invertebrates due to its hardiness, small size, and ease of care in freshwater systems.

Key field marks:

• Small, segmented, curved crustacean body, not a fish
• Selectively bred forms show solid cherry-red coloration; wild type is more translucent brown-green
• Long, thin, whip-like antennae extending forward
• Fan-shaped tail (telson and uropods) used for quick backward flicks
• Ten small walking legs, the front pair bearing tiny pincers
• Adults typically 2-4 cm Its crustacean body plan with jointed legs, antennae, and an exoskeleton immediately distinguishes it from any true fish species.

Cherry Shrimp are native to ponds, ditches, and slow-flowing streams in Taiwan, where they inhabit shallow, vegetated freshwater with soft sediment and abundant plant or algae growth. They tolerate a fairly broad range of water temperatures, generally 15-28°C, and a wide range of pH and hardness. Preferred habitat includes areas with biofilm-covered surfaces, decaying plant matter, and algae, which provide their primary food sources. Dense vegetation offers cover from predators, and slow-moving or still water is favored over fast currents.

Cherry Shrimp are peaceful, non-aggressive grazers that spend most of their time picking algae, biofilm, and organic detritus from surfaces using specialized front appendages. They are largely solitary foragers but tolerate close proximity to others of their kind without conflict. Reproduction involves females carrying fertilized eggs beneath their abdomen until miniature, fully formed juveniles hatch directly, without a planktonic larval stage, an adaptation suited to still freshwater habitats. As algae and detritus grazers, they play a useful ecological role in nutrient cycling and biofilm control within their native ponds and streams.