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Princess Bee shrimp

Paracaridina sp. "Princess Bee"

The Vietnamese princess: rare and delicate shrimp from Hai Van Pass (Vietnam) — also classified as Caridina haivanensis. Small body with variable pattern and elegant coloration. Requires soft, slightly acidic, COOL water — temperatures above 25 °C to be avoided. Active substrate and remineralized RO water like specialized Caridina. Prolific if conditions are stable (20–40 eggs). Species-only tank recommended due to rarity. For expert aquarists.

Taxonomy

Class:Malacostraca

Order:Decapoda

Family:Atyidae

Genus:Paracaridina

Species:Paracaridina sp. "Princess Bee"

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Water Temperature

16 - 24 °C

pH Value

5.5 - 7.5

Water type

Freshwater

Invertebrate type

Freshwater shrimp

Adult size

2 cm

Minimum group

>= 6

0 - 8 dGH

0 - 3 dKH

TDS

80 - 140 ppm

Ecological role

Scavenger

Copper sensitivity

High

Species description

Geographical Origin and Habitat: Endemic to a highly restricted, remote geographical pocket within the rugged, high-altitude mountain ranges of northern Vietnam. Paracaridina sp. "Princess Bee" naturally colonizes extremely isolated, pristine, fast-flowing mountain streams and incredibly clear, cool headwaters completely untouched by human pollution. These micro-habitats are profoundly characterized by intensely oxygenated, crystal-clear water rushing violently over smooth river boulders, coarse gravel, and heavy, decaying accumulations of forest leaf litter deeply shaded by dense jungle canopies.

Taxonomy: Scientifically classified within the Atyidae family, it belongs to the rare, highly specialized Paracaridina genus, which is closely related to, but distinct from, both Caridina and Neocaridina. Taxonomically, it remains an undescribed species (sp.), highly prized by advanced shrimp breeders for its unique genetics. Morphologically, it possesses a sleek, incredibly delicate, and exceptionally tiny dwarf shrimp profile, rarely exceeding 1.5 to 2.0 centimeters. It features highly specialized, bristle-equipped chelipeds (claws) designed exclusively for constantly sweeping microscopic biofilm from smooth rocks.

Social Behavior: They are completely peaceful, highly gregarious, and entirely defenseless invertebrate scavengers. Lacking any form of aggression or physical defense mechanism, they absolutely rely on the psychological security of a large, dense colony (minimum 10-15 individuals) and a heavily structured environment. In a predator-free, pristine tank, they exhibit fascinating, relentless activity. They spend 24 hours a day continuously walking over the substrate, wood, and leaf litter, furiously and meticulously picking at microscopic algae with their sweeping claws.

Coloration and Sexual Dimorphism: Sexual dimorphism is distinct, particularly in mature breeding adults. Females are noticeably larger, possess a vastly deeper, curved underbelly designed to incubate large egg clutches, and exhibit significantly darker, more opaque striping. Males are exceedingly tiny and sleeker. The wild-type coloration is breathtaking and distinct. The base body is transparent or a pale, icy blue-white. The defining feature is a series of thick, bold, vertical jagged bands of intense, velvety black or very deep, rich reddish-brown.

Care, breeding and tankmates

Tank Setup: The aquarium architecture must flawlessly replicate a highly oxygenated, pristine, and cool mountain stream. A minimum 30-liter dedicated nano-tank is strictly required. The absolute most critical element is the substrate: you MUST use a specialized active buffering soil (like ADA Aquasoil) designed to strip carbonates and permanently lock the pH below 6.5. The layout MUST feature extensive branching spider wood, dense thickets of moss, and a massive, continuous carpet of Indian Almond leaves to cultivate essential, life-sustaining biofilm.

Diet and Feeding: In their pristine Vietnamese mountain streams, they are continuous, obligate detritivores and biofilm grazers. They constantly sweep hard surfaces for microscopic bacteria, fungi, and soft algae. In captivity, a highly mature, biologically established tank (running for at least 3 months prior to introduction) with heavy leaf litter provides 90% of their diet. This MUST be supplemented sparingly 2 times a week with specialized, high-quality sinking shrimp pellets, powdered baby shrimp food, and blanched organic spinach.

Water Quality: Originating from isolated mountain streams, they are strict, extreme soft-water specialists demanding immaculate water chemistry. They demand cool water (18-23°C / 64-73°F); temperatures exceeding 25°C cause rapid, fatal bacterial infections. They absolutely require remineralized RO (Reverse Osmosis) water to achieve zero KH, a GH of 4-6, and a highly acidic pH (5.5 - 6.5). They have absolute zero tolerance for ammonia, nitrites, and heavy metals. Massive biological filtration via a large, matured sponge filter is absolutely non-negotiable.

Compatibility and Tankmates: Compatibility is the single greatest challenge. Because they are exceptionally tiny, incredibly fragile, and represent the base of the food chain, they MUST strictly be kept in a dedicated species-only setup to ensure survival and breeding success. If housed with fish, virtually any species (including tiny Tetras) will hunt and instantly consume them. The only remotely acceptable tankmates are harmless snails. Never mix them with Neocaridina or Caridina species to prevent food competition and immense stress.

Aquarium Breeding: Breeding is possible but highly challenging, requiring absolute perfection in water parameters and cool temperatures. They are direct developers. The female develops a dark "saddle" of unfertilized eggs behind her head. Upon molting, males dart frantically around the tank to mate. Following fertilization, she moves 15-25 dark eggs beneath her tail, vigorously fanning them for 4-5 weeks. The eggs hatch into perfectly formed, microscopic replicas of the adults. The incredibly tiny shrimplets absolutely require massive amounts of powdered biofilm to prevent starvation.

Risks and Diseases: The absolute greatest physical risk is physiological collapse and failed molting (the "Ring of Death") caused by improper water chemistry (keeping them in hard tap water or using water with zero GH). The second major risk is lethal copper poisoning; even microscopic trace amounts of copper will exterminate the entire colony instantly. High temperatures (above 25°C) are rapidly fatal. They are notoriously sensitive to nitrate spikes above 5ppm, which will instantly cause them to stop breeding and slowly die off.

Geographic Origin and Distribution

Endemic to a highly restricted, remote geographical pocket within the rugged, high-altitude mountain ranges of northern Vietnam. Paracaridina sp. "Princess Bee" naturally colonizes extremely isolated, pristine, fast-flowing mountain streams and incredibly clear, cool headwaters completely untouched by human pollution. These micro-habitats are profoundly characterized by intensely oxygenated, crystal-clear water rushing violently over smooth river boulders, coarse gravel, and heavy, decaying accumulations of forest leaf litter deeply shaded by dense jungle canopies.

Origin

South and Southeast AsiaEast Asia

Invertebrate profile

Diet: Omnivore
Ecological role: Scavenger
Shock sensitivity: Very high
Calcium and minerals: Medium
Molting: Yes
Reproduction: Oviparous
Compatibility & tankmates: Peaceful

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

Related species

Recommendations grouped by close relatives, companion choices, and similar care.

Variants and close relatives

Same atlas type, nearby scientific identity, genus, or family.

Bumblebee shrimp

Caridina cf. breviata "Bumblebee"

Species description

Care, breeding and tankmates

Geographic Origin and Distribution

Origin

Invertebrate profile

Image gallery

Related species

Variants and close relatives

Bumblebee shrimp

Crystal Black Shrimp (CBS)

Bee Shrimp

Crystal Red Shrimp (CRS)

Black bee shrimp

Blue Bee shrimp

Tiger shrimp

King Kong shrimp

Panda shrimp

Red Ruby shrimp

Snow White shrimp

Wine Red shrimp

Green babaulti shrimp

Black tiger shrimp

Blue tiger shrimp

Orange Eye Blue Tiger shrimp (OEBT)

Recommended companions

Barbula sp.

Amblystegiaceae sp. "Manaus"

Amblystegium riparium

Aldrovanda vesiculosa

Acorus gramineus 'Pusillus'

Bucephalandra pygmaea "Bukit Kelam / Sintang"

Bucephalandra pygmaea "Kapit"

Bucephalandra sordidula

Bucephalandra sp. "Bodok"

Bucephalandra sp. "Braun-rot narrow"

Bucephalandra sp. "Braun-rot" ("Serimbu")

Bucephalandra sp. "Gunung Sumpit"

Bucephalandra sp. "Kedagang"

Acorus gramineus

Aponogeton rigidifolius

Bacopa sp. "Japan"

Similar care

Taiwan Bee Shrimp

Blue Bolt Shrimp

Nigerian hover shrimp

Sri Lanka dwarf shrimp

Red tiger shrimp

Blue Pearl shrimp

Red Cherry shrimp

White Pearl / Snowball shrimp

Yellow Fire shrimp

Malaya shrimp

White Pearl Shrimp

Amano Shrimp

Orange Sunkist shrimp

Cherry Shrimp

Striped babaulti shrimp

Red nose / Pinocchio shrimp