From ReefPedia

[edit] Sexy Shrimp Scientific Name Thor amboinensis Max. Size: 1/4" to 1 1/2" Tank Size: Can vary in size. Small stable systems are better. Aggression: Not aggressive. Hardiness: Very hardy once established. Especially in a species specific system. Reef-Safe: Yes they are reef safe. Can harm some LPS. Available as captive-bred: Unknown Hitchhiker? Possible...

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Physical Description

Brownish-Red, with Gray, Pink and White markings.

Distribution

Sexy shrimp are readily available.

Taxonomic Stuff you know you Care About

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• Genus: Thor

• Species: Thor amboinensis

Behavior

These little guys are very entertaining. When they move, their "tails" wave back and forth as if they were dancing. This is where the "Sexy Shrimp" name came from. They are model citizens in a species tank.

Feeding

They enjoy meaty foods such as Krill and Mysis Shrimp. They also eat algae and detritus.

Breeding

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Social Structure

Sexy Shrimp seem to live well together in groups of odd numbers (ie, 3 or 6, etc).

Additional Notes

Sexy shrimp are by far one of the most entertaining shrimp. They have been known to form relationships with anemones in the wild. Unfortunately, it is not a good idea to have an anemone in a small tank specifically set-up for "Sexy's". I have seen them bonding with Ricordea, and Mushrooms as well. Care should be taken to prevent these tiny little creatures from being sucked into powerheads and filter intakes. Mesh seems to work well to keep that from happening.

The relationships they form in the wild with anemones can be detrimental to some LPS in captivity specifically small Torch Corals as they many times cannot tolerate the Sexy Shrimp's attempt to host them.