Blue Bolt Shrimp
Caridina cantonensis
The Blue Bolt shrimp is an ornamental captive-bred variety of Caridina cantonensis. It demands well-matured tanks, active soil, and cool, stable, slightly acidic water.
Température de l’eau
18 - 23 °C
Valeur du pH
5.5 - 6
Type d'eau
Eau douce
Type d'invertébré
Freshwater shrimp
Taille adulte
2,2 cm
Groupe minimal
>= 10
GH
4 - 5 dGH
KH
0 dKH
TDS
110 - 120 ppm
Rôle écologique
Scavenger
Sensibilité au cuivre
High
Description de l'espèce
Geographical Origin and Habitat: The Blue Bolt shrimp is an ornamental breed (Taiwan Bee mutation) selectively developed in captivity and does not exist in nature. It stems from the wild Caridina cantonensis from Southern China, retaining the natural preference for soft, fresh, and slightly acidic stream environments.
Taxonomy: Classified within the Atyidae family, this dwarf shrimp reaches an adult size of 2-2.5 cm. Morphologically identical to other Caridina species, its unique coloration arises from a combination of deep blue pigmentation in its body tissue beneath a semi-translucent white shell.
Social Behavior: Entirely peaceful, non-aggressive, and highly gregarious. Due to intense selective breeding, they are slightly slower and more timid than wild shrimp, spending most of their time quietly grazing for food on mosses and active substrate.
Coloration and Sexual Dimorphism: Features a striking cobalt blue color on the head (cephalothorax) that fades into an icy-white or pale blue on the abdomen. Mature females are larger and stouter than males, with deeper under-carapace plates to shield eggs during the incubation period.
Soins, reproduction et cohabitation
Tank Setup: A well-established tank of at least 30 liters (with a minimum of 2 months maturation) is critical. Use active soil to keep parameters stable. Plant heavily with mosses and slow-growing epiphytes, and add organic leaf litter (catappa, oak) to leach beneficial humic acids.
Diet and Feeding: Grazes constantly on bacterial biofilm and micro-algae. Feed a varied diet of mineral-rich shrimp pellets, powdered foods, and natural botanicals. Incorporate specialized bacterial additives to ensure a continuous supply of food for newly hatched shrimplets.
Water Quality: Demands very strict parameters: temperature 20-22°C (avoid exceeding 24°C), pH 5.5-6.2, GH 4-6, KH 0-1, and TDS 100-130 ppm. Only use RO water remineralized with KH-free bee salts. High sensitivity to nitrogenous waste and heavy metals.
Compatibility and Tankmates: Strongly recommended for species-only setups. If necessary, only house with small, peaceful snails (e.g. Ramshorn). Avoid housing with any fish, as even small species can stress the shrimp and prey upon newly born shrimplets.
Aquarium Breeding: Difficult due to the fragility of the strain. The female carries 15-20 eggs under her abdomen for 4-5 weeks. Newly hatched shrimplets are microscopic and extremely vulnerable; they require pristine, stable water conditions and abundant biofilm.
Risks and Diseases: High infant mortality rate due to parameter fluctuations. Vulnerable to thermal stress in summer and opportunistic bacterial infections. Copper, chlorine, and unapproved medications are instantly lethal to the entire colony.
Origine et répartition géographiques
The Blue Bolt shrimp is an ornamental breed (Taiwan Bee mutation) selectively developed in captivity and does not exist in nature. It stems from the wild Caridina cantonensis from Southern China, retaining the natural preference for soft, fresh, and slightly acidic stream environments.
Origine
Sélection et cultivarsAmérique du NordAsie de l'Est
Profil d'invertébré
- Régime alimentaire
- Omnivore
- The diet of Caridina cantonensis var. Blue Bolt typically reflects its natural foraging behavior as a Caridina bee shrimp. It thrives on a varied diet that can include specialized commercial foods, naturally occurring biofilm, and appropriately sized organic matter. Providing a balanced nutritional profile ensures robust health, strong coloration, and proper energy levels. Supplemental feeding should be adjusted based on the maturity of the tank and the presence of natural food sources.
- Rôle écologique
- Scavenger
- In its native habitat and the home aquarium, Caridina cantonensis var. Blue Bolt plays a vital ecological role. It contributes significantly to the processing of organic waste and the maintenance of a balanced micro-ecosystem. By engaging in natural behaviors like scavenging, grazing, or sifting, it helps prevent the accumulation of detritus. This species is often considered a crucial component of a comprehensive clean-up crew.
- Taille adulte
- 2.2 cm
- Risque de saut
- Yes
- Despite being aquatic, Caridina cantonensis var. Blue Bolt can present a flight or jump risk under certain conditions. Many invertebrates will attempt to climb out of the water if parameters drop off, oxygen is low, or they are harassed by tank mates. A tightly fitting lid or screen top is highly recommended to prevent accidental desiccation. Ensuring ideal water conditions is the best deterrent to escape attempts.
- Sensibilité aux chocs
- Very high
- Sudden shifts in water parameters can trigger severe osmotic shock in Caridina cantonensis var. Blue Bolt. It requires slow, careful acclimation, preferably using the drip method over several hours. Rapid changes in temperature, salinity, or pH can lead to immediate stress, failed molts, or mortality. Maintaining absolute stability in the tank is more important than chasing specific target values.
- Calcium et minéraux
- Medium
- Adequate calcium levels are absolutely essential for the structural integrity and growth of Caridina cantonensis var. Blue Bolt. For crustaceans and snails, it facilitates proper shell and exoskeleton development, while for corals, it builds the skeletal structure. Aquarists must regularly monitor calcium concentration alongside alkalinity and magnesium. Supplementation through specialized products or mineral-rich foods may be necessary in depleted systems.
- Mue
- Yes
- If applicable to this species, the molting process is a highly vulnerable period for Caridina cantonensis var. Blue Bolt. During this time, the animal will hide while its new exoskeleton hardens, requiring peace and stable water chemistry. The discarded molt should generally be left in the tank, as it provides a valuable source of recycled minerals. A lack of iodine or calcium can lead to fatal molting issues, often referred to as the 'white ring of death'.
- Reproduction
- Oviparous
- The reproductive strategy of Caridina cantonensis var. Blue Bolt can range from simple cloning and fragmentation to complex larval stages requiring varying water conditions. Successful captive breeding often signifies excellent water quality and a well-balanced environment. While some species will readily multiply and populate the tank, others may require specialized rearing setups for the offspring to survive. Researching their specific larval development phase is critical for aquarists aiming to breed them.
- Compatibilité et compagnons
- Species only
- When selecting tank mates for Caridina cantonensis var. Blue Bolt, cautious planning is imperative to avoid predation or aggressive competition. Small or peaceful invertebrates should not be housed with aggressive fish, loaches, or large crabs that might view them as food. Conversely, some specialized invertebrates form symbiotic relationships that can be highlighted in a community setup. A heavily planted or intricately rock-scaped tank often provides necessary refuges.
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