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ShrimpadvancedFreshwater

Crystal Red Shrimp

Caridina cantonensis var. Crystal Red

AnimaliaArthropodaMalacostracaAtyidae

📍 Japan (captive developed)

Ask Finn

Crystal red shrimp are selectively bred bee shrimp featuring striking white and red banding, graded S to SSS by pattern clarity. They demand very soft, slightly acidic water and are highly sensitive to temperature swings, dissolved solids, and trace copper. Dedicated shrimp-only tanks using buffered aquasoil are strongly recommended.

Size1.2"
Min Tank5g
School6+
peaceful
Zoneall

Care Guide

Diet

Crystal red shrimp are omnivores that primarily graze on biofilm, algae, and decaying plant matter in the substrate and on hardscape. Supplement with high-quality shrimp-specific powdered foods (2-3 times weekly) and occasional blanched vegetables like zucchini or spinach. Avoid copper-containing foods and medications, as they are highly toxic to shrimp.

Behavior

Crystal red shrimp are peaceful, slow-moving foragers that spend most of their time grazing on substrate and plants. They are primarily nocturnal and will hide in dense vegetation or under hardscape during the day. Males are smaller and more active than females; they exhibit minimal aggression toward conspecifics but may compete for food.

Breeding

Breeding is moderately difficult and requires pristine water conditions with stable parameters (pH 5.8–6.8, TDS 100–150 ppm, temperature 20–24°C). Females carry eggs for 20–30 days before releasing fully-formed shrimplets; no parental care is needed. Success rates improve significantly in dedicated shrimp-only tanks with abundant biofilm and minimal disturbance.

Common Diseases

Bacterial Infection (Septicemia)

Symptoms

Discoloration, lethargy, molting problems, white spots or lesions on body

Treatment

Perform 25% water changes daily, maintain pristine water parameters, isolate affected individuals; antibiotics are rarely effective in shrimp tanks

Parasitic Infection (Vorticella)

Symptoms

White fuzzy coating on body and appendages, reduced feeding, lethargy

Treatment

Increase water changes, improve water quality, raise temperature slightly (within safe range); salt baths are not recommended for freshwater shrimp

Molting Syndrome

Symptoms

Difficulty shedding exoskeleton, incomplete molts, death shortly after molting

Treatment

Ensure stable pH and GH; provide calcium-rich foods (blanched spinach, specialized shrimp foods); avoid sudden parameter changes

Copper Poisoning

Symptoms

Sudden death, erratic swimming, loss of color, paralysis

Treatment

Prevention is critical—use only copper-free medications and fertilizers; perform immediate large water changes if copper exposure is suspected

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Quick Facts

diet
Omnivore – biofilm, shrimp-specific powdered food, leaf litter
breeding
Moderate; requires stable, species-appropriate parameters
lifespan
1.5–2 years
max size
3 cm (1.2 in)
tank size
10 gallons minimum
temperament
Peaceful

Water it likes

ph
5.8–6.8
tds
100–150 ppm
ammonia
0 ppm
nitrate
<10 ppm
hardness
0–6 dGH
temperature
68–75°F (20–24°C)

Stats

Community tips0
Kept by0 hobbyists