Sexy Anemone Shrimp – Thor amboinensis

Overview:
Sexy Anemone Shrimp (Thor amboinensis) are tiny, reef-safe shrimp best kept in stable, mature nano to reef aquariums where water quality swings are minimal. They naturally live among anemones and some corals, using their host for shelter and spending much of the day “dancing” their curled abdomen. Provide ample rockwork, gentle to moderate flow, and plenty of hiding spots. Ideal parameters are typical reef conditions: 24–26.5°C (75–80°F), salinity 1.024–1.026, pH 8.1–8.4, and very low ammonia/nitrite with controlled nitrate. Because they are small and sensitive, avoid sudden salinity or temperature changes and acclimate slowly (drip acclimation is recommended). They do well singly, but groups (3–6+) often behave more naturally if the tank has enough food and cover.

Compatibility:
Generally peaceful and safe with most corals. They may irritate some LPS or polyps by constant picking if underfed, so consistent feeding reduces nuisance behavior. Best kept with small, calm fish (gobies, firefish, small wrasses with caution) and non-predatory inverts. Avoid tankmates that view shrimp as food: hawkfish, lionfish, larger dottybacks, many triggers, puffers, and large wrasses. Also avoid large predatory crabs, mantis shrimp, and aggressive hermits. They can live with hosting anemones (commonly rock flower anemones and some others), but strong-stinging species can still harm them in cramped spaces; ensure the anemone is healthy and the tank is appropriate for it.

Health and Quarantine:
Most losses trace to poor acclimation, unstable water, copper exposure, or predation. Never use copper medications in systems with them. During molts they are vulnerable; provide iodine through regular water changes (avoid overdosing supplements) and keep alkalinity and salinity steady. Quarantine is possible in a small, cycled tank with PVC shelters; observe for failed molts, lethargy, and injury. Use shrimp-safe treatments only, maintain pristine water, and minimize handling. Frequent small water changes and careful top-off (to prevent salinity swings) are the best preventive care.

They are omnivorous micro-predators and scavengers that pick at detritus, biofilm, and leftover meaty foods. In many tanks they won’t get enough from “cleanup” alone, so target feeding helps. Feed small portions 3–5 times per week (daily in very small systems), using finely chopped mysis, brine shrimp, clam, krill dust, fish eggs, and quality micro-pellets. Occasional powdered coral foods can be accepted, but prioritize meaty items. Use a pipette to deliver food near the shrimp or their host; turn down flow briefly so food isn’t swept away. Watch that faster fish don’t steal everything—if they do, feed the tank first, then target the shrimp.

Finely Chopped Seafood Microalgae Detritus
Sexy Anemone Shrimp are small, active, and highly social invertebrates that spend most of their time perched on host anemones, corals, or rock surfaces. They are well known for their distinctive swaying motion, in which they rhythmically lift and wave their abdomens while walking or standing in place. This behavior is normal and helps them communicate and avoid predators. They are most active during the day and often remain visible, especially when kept in small groups. Sexy Anemone Shrimp are peaceful toward tank mates and rarely stray far from their chosen host, using it as both shelter and a feeding platform where they collect food particles from the water column.

FAQ

Frequently Asked Questions

About the Sexy Anemone Shrimp

  • What is Sexy Anemone Shrimp?
    {"type"=>"root", "children"=>[{"type"=>"paragraph", "children"=>[{"type"=>"text", "value"=>"Overview: \nSexy Anemone Shrimp (Thor amboinensis) are tiny, reef-safe shrimp best kept in stable, mature nano to reef aquariums where water quality swings are minimal. They naturally live among anemones and some corals, using their host for shelter and spending much of the day “dancing” their curled abdomen. Provide ample rockwork, gentle to moderate flow, and plenty of hiding spots. Ideal parameters are typical reef conditions: 24–26.5°C (75–80°F), salinity 1.024–1.026, pH 8.1–8.4, and very low ammonia/nitrite with controlled nitrate. Because they are small and sensitive, avoid sudden salinity or temperature changes and acclimate slowly (drip acclimation is recommended). They do well singly, but groups (3–6+) often behave more naturally if the tank has enough food and cover.\n\nCompatibility: \nGenerally peaceful and safe with most corals. They may irritate some LPS or polyps by constant picking if underfed, so consistent feeding reduces nuisance behavior. Best kept with small, calm fish (gobies, firefish, small wrasses with caution) and non-predatory inverts. Avoid tankmates that view shrimp as food: hawkfish, lionfish, larger dottybacks, many triggers, puffers, and large wrasses. Also avoid large predatory crabs, mantis shrimp, and aggressive hermits. They can live with hosting anemones (commonly rock flower anemones and some others), but strong-stinging species can still harm them in cramped spaces; ensure the anemone is healthy and the tank is appropriate for it.\n\nHealth and Quarantine: \nMost losses trace to poor acclimation, unstable water, copper exposure, or predation. Never use copper medications in systems with them. During molts they are vulnerable; provide iodine through regular water changes (avoid overdosing supplements) and keep alkalinity and salinity steady. Quarantine is possible in a small, cycled tank with PVC shelters; observe for failed molts, lethargy, and injury. Use shrimp-safe treatments only, maintain pristine water, and minimize handling. Frequent small water changes and careful top-off (to prevent salinity swings) are the best preventive care."}]}]}
  • How does Sexy Anemone Shrimp behave or spread?
    Sexy Anemone Shrimp are small, active, and highly social invertebrates that spend most of their time perched on host anemones, corals, or rock surfaces. They are well known for their distinctive swaying motion, in which they rhythmically lift and wave their abdomens while walking or standing in place. This behavior is normal and helps them communicate and avoid predators. They are most active during the day and often remain visible, especially when kept in small groups. Sexy Anemone Shrimp are peaceful toward tank mates and rarely stray far from their chosen host, using it as both shelter and a feeding platform where they collect food particles from the water column.