Red Onyx Shrimp Care Guide
Neocaridina davidi
Stocking Calculator
Bioload Score
80
- Max Size
- 3 cm / 1.2"
- Temperature
- 18–28°C (64–82°F)
- pH Range
- 6.5 – 8
- Min Tank Size
- 20L (5 gal)
- Min Group Size
- 6 fish
- Tank Level
- Bottom
- Origin
- Asia
- Temperament
- Peaceful
- Difficulty
- Easy
- Breeding Difficulty
- Easy
Diet
An omnivorous scavenger that grazes on biofilm and algae while accepting algae-based foods, blanched vegetables and prepared shrimp foods.
Community Compatibility
Suitable tankmates include small peaceful fish such as ember tetras, chili rasboras and otocinclus, along with other non-aggressive dwarf shrimp and snails.
Good to Know
Red Onyx Shrimp are a selectively bred colour form of Neocaridina davidi, a highly variable species whose common colour varieties have been developed through aquarium breeding.
Gender Differences
Females are typically larger and more robust with a broader, curved abdomen, while males are slimmer and usually less intensely coloured.
About the Red Onyx Shrimp
The Red Onyx Shrimp is a striking ornamental colour form of Neocaridina davidi, displaying rich red pigmentation that can range from translucent crimson to a deep, jewel-like onyx red. Its compact body, fan-shaped tail and delicate walking legs make it an appealing focal point for planted aquariums and nano aquatic displays.These shrimp are peaceful, unobtrusive animals that spend much of their time grazing across surfaces with their tiny claws and mouthparts. They constantly pick over leaves, wood, rocks and substrate for microscopic films of algae, bacteria and other edible organic material, creating an engaging pattern of quiet, purposeful activity.Neocaridina davidi is native to freshwater habitats in East Asia, including streams, pools and slow-moving waters associated with vegetation and submerged debris. In these environments, the shrimp use their small size and mottled ancestral coloration to remain inconspicuous while searching for food and shelter.Red Onyx Shrimp are selectively bred rather than a distinct wild species, and their colour may vary between individuals and generations. Females are generally larger and more strongly coloured than males, and mature females may show eggs or a yellowish saddle visible through the body.Like other Neocaridina colour varieties, Red Onyx Shrimp are popular because they combine fascinating natural behaviour with prolific reproduction under suitable conditions. Their widespread availability has made them one of the best-known freshwater ornamental shrimp in the aquarium hobby.
Stock Red Onyx Shrimp in Your Tank
Use our free stocking calculator to see if Red Onyx Shrimp fits your aquarium