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InvertebrateFreshwaterDifficult

Curated catalog

Red Ruby shrimp

Caridina cf. cantonensis "Red Ruby"

The ruby of cantonensis: intense bright red body with deep ruby hues — similar to Wine Red but with a more vivid, brilliant tone. Selected Taiwan Bee variety for red intensity. Grading based on saturation and uniformity of red without transparencies. Same acidic, soft parameters as Taiwan Bee. For expert selective shrimp breeders.

Family
Atyidae
Origin
China, Deutschland
Tank use
Used in 0 tanks
Temperature

20 °C - 23 °C

pH

5.4 - 6.5

Water type

Freshwater

Ecological role

Algivoro/detritivoro

Copper

Extreme: copper lethal

Description

Geographical Origin & Biotope:

The Red Ruby Shrimp (a variant of Caridina cf. cantonensis) does not exist in the wild. It is an extremely advanced, breathtaking, entirely captive-bred Taiwan Bee mutation, the red counterpart to the King Kong Shrimp. The captive "biotope" requires the absolute highest standard of extreme water purity, dense layers of specialized aquatic mosses, and massive accumulations of decomposing leaf litter slowly breaking down in highly oxygenated, deeply acidic, and artificially softened water.

Taxonomy & Morphology:

Scientifically classified within the Atyidae family, it is a spectacular, biologically hyper-delicate, and profoundly prized dwarf shrimp. Morphologically, fully mature adults reach a maximum of roughly 2.5 centimeters (1.0 inch) in length. It possesses the deeply compact, heavily armored exoskeleton typical of Caridina. The "Red Ruby" is the absolute pinnacle of red coloration in the "Taiwan Bee" lineage, resulting from complex, intensive selective breeding to achieve an impossibly dense, thick layer of deep red pigment covering the shell.

Social Behavior:

They are highly intelligent, entirely non-aggressive, and deeply communal benthic (bottom-dwelling) invertebrates. They are completely harmless and absolutely MUST be kept in a sizable colony (absolute minimum 10-15 individuals) to establish critical security, disperse shyness, and encourage breeding. In the aquarium, they possess a fascinating, intensely busy, and constant scavenging lifestyle. They spend 100% of their entire day continuously crawling over every square inch of the substrate, specifically focusing on complex moss structures, meticulously picking off microscopic biofilm.

Coloration & Sexual Dimorphism:

Sexual dimorphism is extremely subtle and difficult to discern due to their intensely dark, opaque coloration; mature females possess a slightly deeper, more rounded abdomen, but the "saddle" (developing eggs) is entirely invisible through the shell. The coloration of the Red Ruby Shrimp is breathtaking and legendary: the body is entirely covered in a blindingly thick, completely solid, utterly opaque glowing blood-red or deeply saturated dark crimson-red shell. This massive red coverage is punctuated only by stark, bright, glowing white horizontal stripes across the back.

Care and observations

Tank Setup:

The aquarium architecture MUST flawlessly, unconditionally replicate a pristine, fiercely cool, and intensely planted mountain stream. A minimum 30-liter (8-gallon) tank is required for a dedicated colony. The absolute most critical requirement is extreme water buffering; a high-quality active, buffering aquatic soil (like ADA Amazonia) is absolutely, unconditionally mandatory to lock the pH below 6.0. The tank MUST feature massive thickets of fine-leaved plants, specifically dense carpets of aquatic moss (Taiwan Moss, Fissidens), and abundant Indian Almond leaves (Catappa).

Diet & Feeding:

They are highly specialized, continuous scavengers that feed exclusively by meticulously picking microscopic biofilm, algae, and decaying organic matter off surfaces. In the aquarium, their diet MUST be meticulously controlled. While they constantly graze on natural biofilm, they strictly MUST be fed a heavily vegetable-based, ultra-premium micro-diet. Daily offerings of specialized Taiwan Bee sinking pellets, massive amounts of powdered bacter-AE (to generate biofilm), and blanched organic vegetables (spinach, nettle leaves) are unconditionally mandatory for survival.

Water Quality:

Taiwan Bees are the absolute most delicate freshwater dwarf shrimp in the hobby, possessing extreme, unforgiving water requirements. They strictly demand COOL water (20-23°C / 68-73°F); temperatures above 25°C will instantly suppress their immune system and cause massive die-offs. Crucially, they absolutely require ultra-soft water (GH 4-6, KH 0-1) and a deeply acidic pH (5.5 - 6.5). They possess absolute zero tolerance for dissolved organic waste; using pure RO/DI water remineralized with specific Taiwan Bee salts (GH+) is unconditionally mandatory.

Compatibility & Tankmates:

Compatibility is strictly limited by their extreme water parameter requirements, microscopic size, profound delicacy, and massive financial value. They are the perfect, spectacular centerpiece for a dedicated, single-species high-grade shrimp biotope. They MUST NEVER be housed with any standard community fish; even small micro-fish will stress them and ruthlessly hunt their microscopic babies. They should strictly be housed absolutely alone, though a completely species-only tank is strongly, unconditionally recommended for breeding.

Aquarium Breeding:

Breeding is possible but highly challenging, requiring absolute perfection and immense stability in their extreme water parameters. They are direct developers. Triggered by highly stable, cool, acidic water, mature females will carry 15-25 dark red eggs under their abdomen for roughly 4-5 weeks. When they hatch, the babies emerge as microscopic, fully formed replicas of the adults. The Taiwan Bee babies are profoundly delicate, vasty more sensitive than standard CRS; massive tangles of moss and powdered biofilm supplements (like Bacter-AE) are absolutely mandatory to ensure survival.

Risks & Diseases:

The absolute greatest physical risk is rapid, lethal toxicity; they possess absolute zero tolerance for Copper, heavy metals, chemical medications, or even trace Ammonia. The use of pure RO/DI water remineralized with specific Taiwan Bee salts is unconditionally mandatory; tap water is an instant death sentence. The second major risk is lethal physiological collapse caused by incorrect parameters; keeping them in warm water (above 25°C) or alkaline water (pH above 6.5) will rapidly wipe out the entire colony. Finally, active buffering soil is unconditionally required.

Invertebrate profile

Type
Freshwater shrimp
Diet
Pascolatore: biofilm, alghe, detrito. Pellet per gamberetti premium, spirulina
Ecological role
Algivoro/detritivoro
Minimum group
6
Adult size
2.5 cm
GH
4 dGH - 6 dGH
KH
0 dKH - 1 dKH
TDS
100 ppm - 150 ppm
Copper
Extreme: copper lethal
Shock sensitivity
Estrema
Calcium and minerals
Rimineralizzazione costante e precisa per mute corrette
Molting
Mute delicatissime
Reproduction
Sviluppo diretto. Selezione per intensità del rosso rubino.
Compatibility
Vasca monospecifica per Taiwan Bee.

Image gallery

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

Representative live aquarium/natural image from Caridina cf. cantonensis "Bee" (same genus) because no reusable exact aquarium photo was found for Caridina cf. cantonensis "Red Ruby".