Red Galaxy Pinto (Caridina cf. cantonesis )

The Red Galaxy Pinto is a stunning and highly sought-after freshwater shrimp, representing the pinnacle of selective breeding in the aquarium hobby . It is a variety of Caridina cantonensis (also referred to as Caridina logemanni), known for its intricate and unique color patterns .

Here is a detailed overview of the Red Galaxy Pinto shrimp.

 Origin and Naming

The Red Galaxy Pinto is not found in the wild; it is a product of years of careful selective breeding, primarily originating from Taiwan Bee shrimp lines . Its name comes from its distinctive appearance:

• "Galaxy" refers to the fine, white speckles scattered across the shrimp's head and body, resembling a starry night sky .

• "Pinto" describes the broken pattern of white spots, stripes, or patches on its body, similar to a pinto horse .

 Appearance and Grading

The Red Galaxy Pinto is famous for its bold contrast between a deep ruby-red body and opaque white markings . A key characteristic is that no two shrimp have exactly the same pattern, making each individual unique .

The value of these shrimp is heavily determined by their grade, which is based on the intensity and distribution of color and pattern :

• Lower Grades: Feature more solid red coloration with very little white patterning.

• Higher Grades (e.g., S, SS): Display more extensive and intricate white markings. The most valuable specimens can have mostly white bodies with striking red accents and can command very high prices . Some high-grade specimens also carry "Snowflake genes," which create delicate, snowflake-like patterns within the white areas .

 Ideal Tank Conditions

Due to their sensitive nature, these shrimp are best suited for experienced keepers who can provide stable and specific water parameters .

• Tank Size: A minimum of 5 gallons is recommended, though a 10-20 gallon tank is better for maintaining stable water conditions for a colony .

• Water Parameters: They require soft, slightly acidic water that is very clean and stable.

  • Temperature: 68-74°F (20-23°C) .

  • pH: 5.5 - 6.8 .

  • General Hardness (GH): 3-6 dGH .

  • Carbonate Hardness (KH): 0-2 dKH (as close to 0 as possible) .

  • Total Dissolved Solids (TDS): 90-150 ppm .

• Substrate and Filtration: An active buffering substrate (like ADA Amazonia) is essential to help maintain acidic pH and stable parameters . A gentle sponge filter is the best choice for filtration to provide safety for baby shrimp (fry) and avoid strong currents .

• Water: It is crucial to use reverse osmosis (RO) water that is then remineralized with a specific shrimp mineral supplement (like Salty Shrimp GH+) to achieve the correct parameters .

 Diet and Feeding

Red Galaxy Pintos are omnivores and natural scavengers .

• Primary Diet: In a mature tank, they will spend most of their time grazing on biofilm and algae, which should be their main food source .

• Supplemental Foods: To maintain vibrant colors and health, you can supplement their diet a few times a week with:

  • High-quality, plant-based shrimp foods .

  • Blanched vegetables like spinach or zucchini .

  • Occasional protein treats like daphnia or specialized protein foods .

 Behavior and Tank Mates

These shrimp are extremely peaceful and do best in a species-only tank where they can thrive without stress or competition .

• Tank Mates: If you wish to add tank mates, only consider other small, peaceful invertebrates like nerite snails or very small, non-predatory fish such as chili rasboras or ember tetras . However, even small fish may prey on shrimp fry.

• Incompatible Species: Avoid any predatory or aggressive fish like bettas, cichlids, goldfish, and larger tetras .

 Breeding

Breeding Red Galaxy Pintos can be rewarding but requires a stable, mature environment .

• Sexing: Females are larger, rounder, and often display deeper color than the smaller, more slender males .

• Reproduction: A female will carry 15-25 eggs under her abdomen for about 30 days before they hatch into fully formed, tiny versions of the adults .

• Fry Care: The baby shrimp are independent from birth and will graze on biofilm. Providing plenty of moss and hiding places is crucial for their survival .

 Size and Lifespan

• Size: They typically grow to about 1 to 1.2 inches (2.5-3 cm) in length .

• Lifespan: With proper care and stable water conditions, their average lifespan is 1.5 to 2 years .