Red Galaxy Shrimp Care Guide
Caridina cantonensis
Stocking Calculator
Bioload Score
400
- Max Size
- 2.5 cm / 1"
- Temperature
- 18–24°C (64–75°F)
- pH Range
- 6 – 7.2
- Min Tank Size
- 20L (5 gal)
- Min Group Size
- 6 fish
- Tank Level
- Bottom
- Origin
- Asia
- Temperament
- Peaceful
- Difficulty
- Advanced
- Breeding Difficulty
- Moderate
Diet
An omnivorous scavenger that grazes on algae, biofilm, plant matter and tiny aquatic organisms.
Community Compatibility
Suitable tankmates include other peaceful Caridina shrimp, Neocaridina shrimp and small non-predatory snails, while fish are best avoided.
Good to Know
The Red Galaxy Shrimp is a selectively bred Caridina cantonensis colour morph prized for its red-and-white galaxy-like patterning.
Gender Differences
Females are generally larger and rounder than males, with a broader abdomen and a visible saddle or eggs when mature.
About the Red Galaxy Shrimp
The Red Galaxy Shrimp is a striking ornamental dwarf shrimp with a vivid red base colour, contrasting white markings and a speckled or galaxy-like pattern across its body. Individual patterns vary considerably, making each shrimp visually distinctive and highly sought after by shrimp enthusiasts.This shrimp is a peaceful, bottom-dwelling invertebrate that spends much of its time grazing across surfaces and investigating the substrate. It is active but delicate, and its small size allows it to explore narrow spaces among aquatic plants, wood and other submerged structures.Caridina cantonensis originates from freshwater streams and tributaries in southern China and Taiwan, where clear, cool, mineral-rich waters flow over rocky or gravelly beds. These habitats contain abundant biofilm and leaf litter, which provide both shelter and natural feeding surfaces.The Red Galaxy Shrimp is a selectively bred colour variety within the Caridina cantonensis complex, commonly associated with the high-grade Pinto shrimp lines developed by ornamental shrimp breeders. Its patterned appearance reflects careful line breeding rather than a naturally occurring wild colour form.Like other dwarf shrimp, it plays a useful ecological role as a small scavenger, consuming algae, biofilm and organic particles while contributing to the constant recycling of nutrients in its aquatic environment.
Stock Red Galaxy Shrimp in Your Tank
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