Sexy Shrimp (Thor amboinensis) – 2.5 cm

Overview

The Sexy Shrimp (Thor amboinensis) is one of the most entertaining marine invertebrates you can keep in a nano reef or peaceful coral display. Named for the distinctive tail-wagging “dance” it performs, this tiny shrimp is full of character despite its small size. Adults typically reach around 2.5 cm, making them ideal for compact marine systems where larger livestock would be unsuitable.

This species is best known for its striking body pattern, active behaviour, and close association with anemones in the wild. In the aquarium, Sexy Shrimp are generally peaceful, reef-safe, and fascinating to watch as they pick at food and interact with their surroundings. They are a superb choice for aquarists looking to add movement and interest to a nano reef without increasing bioload significantly.

At Tropical Fish Co, we supply healthy marine livestock with a live arrival guarantee and fast UK delivery, so your new shrimp arrives in the best possible condition for acclimation and long-term success.

Care at a Glance

Origin & Natural Habitat

Thor amboinensis is found across tropical Indo-Pacific waters, including reef environments around Indonesia and neighbouring regions. In nature, it lives on sheltered reef slopes, lagoons, and coral rubble areas where it often associates with sea anemones and other cnidarians. This relationship offers protection and a safe place to feed, rest, and breed.

The species is adapted to warm, stable marine conditions with excellent water movement and high oxygenation. It spends much of its time perched on host structures, swaying in the current and picking at tiny food particles. Understanding this natural behaviour helps aquarists provide a setup that encourages confidence and natural activity.

Tank Setup & Water Parameters

Sexy Shrimp are small, but they still need a mature, stable marine aquarium. A minimum of 40 litres is suitable for a single specimen or a very small group in a well-maintained nano reef. Because they are delicate and sensitive to poor water quality, stability is more important than tank size alone.

Use a fully cycled aquarium with live rock, hiding places, and gentle to moderate flow. They appreciate areas where they can perch and retreat, especially if you keep them with an anemone or coral structure. Fine sand is not essential, but a natural reef aquascape with plenty of crevices and overhangs works well.

Recommended parameters are:

• Temperature: 24–27°C
• pH: 8.1–8.4
• Salinity: 1.023–1.026 SG
• Ammonia and nitrite: 0
• Nitrate: kept as low as practical, ideally under 10–15 ppm

As with all marine invertebrates, avoid sudden changes in salinity, temperature, or pH. Drip acclimation is strongly recommended. Good filtration, regular water changes, and stable reef chemistry will help your shrimp thrive. If you are ordering online, our fast UK delivery and live arrival guarantee help ensure your livestock reaches you safely and promptly.

Feeding Guide

Sexy Shrimp are omnivorous scavengers that feed on tiny meaty foods, detritus, and micro-particulate matter in the aquarium. In a mature reef, they will graze naturally, but they should still be target-fed to maintain condition and encourage regular feeding.

Offer small portions of finely chopped frozen foods such as mysis, enriched brine shrimp, copepods, and marine invertebrate foods. They may also accept high-quality powdered or pelletised marine foods if the particles are small enough. Feed once or twice daily in modest amounts, ensuring food is consumed quickly to avoid water quality issues.

If kept with anemones, the shrimp will often remain close to the host and may take food directly from the water column or from the anemone’s tentacles. A varied diet supports colour, activity, and successful moulting.

Tank Mates / Compatibility

Sexy Shrimp are peaceful and best kept with other calm reef inhabitants. They do well in nano reefs with gentle fish and non-aggressive invertebrates, especially where there is plenty of cover. They can be kept singly, as a pair, or in a small group if the aquarium is large enough and well structured.

Suitable companions include small gobies, clownfish in appropriate setups, blennies, firefish, cleaner shrimp, peppermint shrimp, snails, and reef-safe corals. They may also coexist with host anemones, which can provide a natural focal point for the aquarium.

Avoid housing them with predatory or boisterous species that may harass or eat them. Larger wrasses, hawkfish, dottybacks, triggers, puffers, and many aggressive crabs are poor choices. As they are tiny, even some seemingly peaceful fish may view them as food if the tank is too sparse or if the shrimp lacks hiding places.

For the best results, keep them in a mature reef with stable parameters, plenty of rockwork, and tank mates chosen for compatibility rather than size alone.

Why Buy from Tropical Fish Co

When you buy Sexy Shrimp from Tropical Fish Co, you are choosing carefully selected marine livestock backed by professional packing, fast UK delivery, and a live arrival guarantee. We understand how important safe transit and healthy stock are, especially for delicate invertebrates like Thor amboinensis.

Our team focuses on quality, welfare, and reliable service from order to arrival. Whether you are building a nano reef or adding a unique feature to an established marine aquarium, we aim to make the process straightforward and reassuring. With careful handling, prompt dispatch, and expert support, you can order with confidence and enjoy one of the most charming shrimp in the hobby.