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ShrimpbeginnerSaltwater

Sexy Shrimp

Thor amboinensis

AnimaliaArthropodaMalacostracaThoridae

📍 Indo-Pacific, Mediterranean

Ask Finn

Tiny brown-orange shrimp with white polka-dots and a characteristic upward tail-bob dance. Commonly lives among anemones and Zoanthids in groups. One of the most endearing nano reef invertebrates.

Size1"
Min Tank10g
School3+
peaceful
Zoneall

Care Guide

Diet

Sexy shrimp are omnivorous scavengers that thrive on a varied diet of small frozen foods like mysis shrimp, copepods, and enriched brine shrimp, supplemented with natural detritus and biofilm from tank surfaces. Feed small portions 2-3 times weekly, as they primarily forage on microorganisms and decaying matter in established tanks. They benefit from occasional vegetable matter and high-quality micro pellets designed for small invertebrates.

Behavior

These diminutive shrimp are famous for their characteristic upward tail-bobbing dance, which they perform while hovering near anemones and corals—a behavior that gives them their common name. They are highly social and peaceful, living in small groups (3+) without aggression, and spend most of their time foraging among substrate and décor or dancing near host anemones. They are primarily nocturnal to crepuscular, becoming more active during low-light periods.

Breeding

Breeding sexy shrimp in captivity is difficult and rarely successful in home aquariums. Females produce small batches of larvae that require specific planktonic food sources and ideal water conditions to survive. Most captive specimens are wild-caught, and successful breeding requires expert-level husbandry with specialized larval rearing setups.

Common Diseases

Bacterial Infection

Symptoms

Discoloration, lethargy, visible lesions or fuzzy growth on body, loss of appetite

Treatment

Improve water quality through frequent partial water changes; maintain stable salinity and temperature; use antibiotic-medicated foods if available; isolate severely affected individuals

Parasitic Infestation

Symptoms

Excessive grooming behavior, white spots or film on body, erratic swimming or dancing, reduced feeding

Treatment

Perform large water changes; increase aeration; maintain optimal water parameters; copper-based treatments should be avoided as shrimp are sensitive; quarantine new additions

Molting Complications

Symptoms

Inability to shed exoskeleton, lethargy, loss of limbs, death shortly after molting attempt

Treatment

Ensure adequate calcium and iodine through varied diet and supplements; maintain stable water parameters; provide plenty of hiding places; avoid handling during molting periods

Poor Water Quality Stress

Symptoms

Faded coloration, reduced activity, loss of characteristic tail-bobbing behavior, increased mortality

Treatment

Perform immediate 25-30% water change; test and adjust pH (8.1-8.4), salinity, and temperature; reduce bioload; increase water circulation and aeration

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Quick Facts

pH
8.1–8.4
diet
omnivore — mysis, copepods, detritus
maxSize
1 inch
minTankSize
5 gallons
temperature
72–82°F (22–28°C)

Temperature

72–82°F

22–28°C

Stats

Community tips0
Kept by0 hobbyists