Monaco Shrimp
Lysmata seticaudata
A small marine cleaner shrimp native to the Mediterranean and Eastern Atlantic, famous for its ability to eradicate pest Aiptasia anemones. Geographical Origin and Habitat: Lysmata...
Température de l’eau
15 - 25 °C
Valeur du pH
8.1 - 8.4
Type d'eau
Marin
Type d'invertébré
Marine shrimp
Taille adulte
7 cm
Groupe minimal
>= 1
Rôle écologique
Scavenger
Sensibilité au cuivre
High
Description de l'espèce
Geographical Origin and Habitat: Lysmata seticaudata is native to the Mediterranean Sea and the eastern Atlantic Ocean, ranging from the temperate coastlines of France and the Iberian Peninsula down to the Azores, Madeira, and the Canary Islands. It inhabits shallow coastal waters, typically between 1 and 30 meters deep, sheltering inside rocky crevices, dark caves, Posidonia oceanica seagrass beds, and under large stones. It prefers dim environments where it can remain hidden during daylight hours.
Taxonomy: Belonging to the class Malacostraca, order Decapoda, infraorder Caridea, family Lysmatidae, and genus Lysmata. It is distinguished from other members of its genus by its unique longitudinal striping pattern and rostral characteristics. It is a simultaneous hermaphrodite; every mature adult possesses functional male and female reproductive organs, though they require a partner to mate as self-fertilization does not occur.
Social Behavior: This is a gregarious species that lives in small groups within the same rocky shelter. It acts as a cleaner shrimp, establishing cleaning stations where it removes external parasites and dead tissue from the skin of visiting fish. It has nocturnal habits, emerging at dusk to explore the substrate for detritus and food.
Coloration and Sexual Dimorphism: The body is translucent with a striking pattern of red and white or pinkish-red longitudinal stripes running along its length, accompanied by a darker patch on the tail. There is no visible external sexual dimorphism due to its simultaneous hermaphroditic nature; individuals carrying eggs under their pleopods act temporarily as the female partner.
Soins, reproduction et cohabitation
Tank Setup: Well-suited for nano aquariums of 40 liters or larger. It is essential to provide live rock arranged to form small caves and dark overhangs where the shrimp can hide during the day. Lighting should include shaded areas. Water flow should be moderate. Cover filter intakes and powerheads to prevent these small invertebrates from being sucked in.
Diet and Feeding: Omnivorous and detritivorous. In the home aquarium, it is highly valued for actively consuming pest Aiptasia anemones. It also accepts frozen foods (mysis, brine shrimp, krill), sinking pellets, flakes, and organic detritus. Regular feeding is recommended to prevent them from picking at coral polyps when hungry.
Water Quality: Requires stable marine conditions: temperature between 18 °C and 25 °C (tolerating cooler temperatures than tropical species), pH 8.1 to 8.4, and specific gravity (SG) 1.020 to 1.025. Iodine supplementation is vital to support regular molting of the exoskeleton. Copper must be completely absent from the water.
Compatibility and Tankmates: Very peaceful, making it compatible with most small to medium reef fish. Do not house with predatory species that feed on crustaceans, such as hawkfish, puffers, triggerfish, wrasses, or groupers. It is reef-safe, although it may occasionally steal food directly from coral polyps.
Aquarium Breeding: Mating occurs frequently in aquariums. After molting, two shrimp mate and one carries the fertilized eggs under its abdomen. The larvae are released into the water column at night. However, raising the larvae is extremely difficult due to their prolonged pelagic larval stages requiring specialized micro-foods.
Risks and Diseases: Highly sensitive to copper treatments and rapid changes in salinity (osmotic shock). Slow drip acclimation is mandatory. The molting period is highly critical; a lack of iodine or harassment by tankmates during a molt can cause fatal complications or limb deformities.
Origine et répartition géographiques
Lysmata seticaudata is native to the Mediterranean Sea and the eastern Atlantic Ocean, ranging from the temperate coastlines of France and the Iberian Peninsula down to the Azores, Madeira, and the Canary Islands. It inhabits shallow coastal waters, typically between 1 and 30 meters deep, sheltering inside rocky crevices, dark caves, Posidonia oceanica seagrass beds, and under large stones. It prefers dim environments where it can remain hidden during daylight hours.
Origine
Océans tropicaux et récifsEurope, Méditerranée et Asie occidentale
Profil d'invertébré
- Régime alimentaire
- Omnivore
- Lysmata seticaudata is primarily an omnivorous scavenger that constantly forages for detritus, biofilm, and leftover food among the substrate. In captivity, their diet should be supplemented with high-quality sinking pellets, frozen mysis, and occasional vegetable matter. A diverse and rich diet ensures robust molting and brilliant coloration.
- Rôle écologique
- Scavenger
- Playing a critical role in the aquatic food web, Lysmata seticaudata acts as a macro-detritivore that breaks down organic materials. Their constant scavenging significantly reduces the accumulation of decaying matter, thereby improving overall water quality. In reef or planted tanks, they often act as meticulous cleaners of the aquascape.
- Taille adulte
- 7 cm
- Risque de saut
- Yes
- When startled by a sudden movement, bright light, or aggressive tank mate, Lysmata seticaudata possesses a powerful tail-flick reflex that can launch them entirely out of the water. This jumping behavior makes an unsecured aquarium a severe hazard. A tight-fitting lid or mesh top is absolutely mandatory to prevent them from becoming desiccated on the floor.
- Sensibilité aux chocs
- Medium
- Lysmata seticaudata is highly susceptible to osmotic shock caused by rapid shifts in specific gravity, temperature, and pH. Sudden changes can compromise their delicate osmoregulatory systems, often leading to immediate fatalities or failed molts. A diligent drip acclimation process taking at least one to two hours is vital for successful introductions.
- Calcium et minéraux
- High
- To successfully regenerate their chitinous exoskeleton during a molt, Lysmata seticaudata requires consistent availability of dissolved calcium, magnesium, and trace iodine. Poor mineral content in the water column can result in "white ring of death" or the inability to fully shed their old shell. Regular water changes and appropriate mineral supplementation are essential for their survival.
- Mue
- Yes
- Molting is the most precarious time in the life cycle of Lysmata seticaudata, during which it will hide until its new exoskeleton hardens. Aquarists will often find complete, transparent molts in the tank, which should be left in the water as the shrimp will consume it to reclaim lost minerals. Never disturb or force a shrimp out of hiding during this vulnerable phase.
- Reproduction
- Oviparous
- Under optimal water conditions and with plenty of food, Lysmata seticaudata can readily breed in captivity. Females can often be seen carrying clutches of eggs (berried) beneath their pleopods until they hatch into miniature shrimp or planktonic larvae. Providing dense moss or hiding spaces greatly increases the survival rate of the offspring.
- Compatibilité et compagnons
- Peaceful
- Lysmata seticaudata is best kept in dedicated invertebrate setups or alongside small, peaceful nano fish. They are at high risk of predation from cichlids, larger wrasses, hawkfish, and puffers, which will readily hunt them. When kept with appropriate tank mates, they will confidently display their active and engaging behaviors.
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