Neocaridina davidi (Cherry Shrimp) (Neocaridina davidi)

Atyidae Familypeacefulbeginner Care
Neocaridina davidi (Cherry Shrimp)

Quick Answer

Neocaridina davidi (Cherry Shrimp) is a hardy freshwater invertebrate reaching 1.5 inches (3.8 cm). It thrives in stable, mature aquariums with a pH of 6.8 to 7.8, GH of 6 to 8 dGH, KH of 2 to 5 dKH, and TDS of 150 to 220 ppm. They spend their time grazing on biofilm and require plenty of hiding spaces, making them ideal for planted nano tanks.

Lifespan 2 years
Max Size 1.5 in (3.8 cm)
Difficulty beginner
Diet Omnivore

Quick Facts

Scientific Name Neocaridina davidi
Common Names Cherry Shrimp, Red Cherry Shrimp, RCS, Fire Red Shrimp
Family Atyidae
Genus Neocaridina
Temperament peaceful
Care Difficulty beginner
Lifespan 2 years
Maximum Size Up to 1.5 in (4 cm)
Diet Omnivore
Temperature 70–75°F (21–24°C)
pH 6.8–7.8
Hardness 6–8 dGH

Key Takeaways

  • peaceful
  • 2 lifespan
  • Omnivore diet
  • Up to 1.5" adult size
  • 70–75°F

Neocaridina vs. Caridina Shrimp Husbandry

FeatureNeocaridina (Cherry)Caridina (Crystal Red)
Scientific NameNeocaridina davidiCaridina cantonensis
DifficultyBeginnerIntermediate to Advanced
pH Preference6.8 – 7.8 (Neutral to Hard)5.5 – 6.5 (Acidic / Soft)
Substrate RequirementInert Sand or Fine GravelActive Buffering Aquasoil
General Hardness (GH)6 – 8 dGH (100–145 ppm)4 – 6 dGH (70–105 ppm)
Carbonate Hardness (KH)2 – 5 dKH (Buffers pH)0 – 1 dKH (Zero buffer required)
Water Stability NeedsAdaptable; requires stable parametersObligate specialist; highly sensitive to shifts

Frequently Asked Questions

What is the scientific classification of Cherry Shrimp?

Cherry Shrimp belong to the species Neocaridina davidi (formerly classified as Neocaridina heteropoda or Neocaridina denticulata sinensis). They are decapod freshwater shrimp of the family Atyidae native to eastern China and northern Taiwan. While selective breeding has established morphs like Red Cherry, Blue Dream, Yellow Golden Back, Orange Sunkist, and Green Jade, they represent the identical biological species and will crossbreed.

What are the exact water parameters for Neocaridina shrimp?

Target a pH of 6.8 to 7.8, General Hardness (GH) of 6 to 8 dGH (approx. 100–145 ppm), Carbonate Hardness (KH) of 2 to 5 dKH, Total Dissolved Solids (TDS) of 150 to 220 ppm, and water temperatures of 70 to 75°F (21 to 24°C). Parameter stability is far more critical than chasing exact figures; sudden osmotic shifts or GH depletion below 4 dGH interrupt ecdysis, causing fatal molting entrapment (the White Ring of Death).

What do Neocaridina shrimp eat?

They are continuous micro-grazers that feed primarily on naturally occurring biofilm, epiphytic microalgae, and decaying organic matter. In a mature aquarium, supplement 2 to 3 times weekly with high-calcium sinking shrimp pellets, spirulina wafers, or blanched vegetables (spinach, zucchini). Always remove uneaten food within 2 hours to prevent bacterial surges and lethal planaria infestations.

Are Neocaridina shrimp compatible with fish?

The only truly harmless fish companion is the herbivorous Otocinclus catfish. While adult shrimp can coexist with small, peaceful nano species (such as Chili Rasboras, Celestial Pearl Danios, and Ember Tetras), any fish with a mouth large enough to swallow a 2 mm shrimplet will opportunistically prey upon them. For maximum breeding yields, establish a dedicated species-only aquarium or provide extensive cover using dense Java moss and botanicals.