Anchisteus Cleaner Shrimp

Geographical Origin and Habitat: Lysmata anchisteus is native to the tropical Indo-Pacific region. It is commonly found in shallow coral reefs, rocky crevices, and protected lagoons across Indonesia, the Philippines, and adjacent island groups, seeking shelter in caves and under coral ledges at depths down to 30 meters.

Taxonomy: Belongs to the family Hippolytidae and the genus Lysmata. It is distinguished from other peppermint-like shrimps by minor morphological differences in its rostrum spines and walking leg proportions. Adults reach a maximum size of approximately 4 to 5 centimeters.

Social Behavior: It is a peaceful, active, and highly beneficial reef invertebrate. While it participates in cleaning symbiotic behaviors by picking parasites off fish, it is also a highly active scavenger. It is mostly active during twilight and nighttime, spending its day in shaded rock areas.

Coloration and Sexual Dimorphism: Displays a striking color pattern consisting of alternating red and translucent-white longitudinal stripes along its body. It has long, white sensory antennae. Like other Lysmata species, it is a simultaneous hermaphrodite, with each mature individual functioning as both male and female.

Tank Setup: Needs a reef-ready or fish-only marine aquarium of at least 80 liters. The setup must include plenty of stable live rock arranged to create overhangs, caves, and dark shelters. This provides the shrimp with security during the day and a safe place to hide when it sheds its exoskeleton.

Diet and Feeding: An opportunistic omnivore. It easily feeds on a wide range of aquarium foods, including leftover fish flakes, frozen foods (mysis, brine shrimp, chopped seafood), and sinking pellets. It also consumes organic detritus and may occasionally help control small glass anemones.

Water Quality: Requires stable marine parameters: temperature 22°C to 26°C, pH between 8.1 and 8.4, specific gravity between 1.023 and 1.025, and KH of 8 to 12 dKH. Regular water changes are recommended to keep nitrates low and replenish essential trace minerals.

Compatibility and Tankmates: Reef-safe and peaceful toward corals, clams, and other non-predatory tankmates. Can be kept in pairs or small groups. Do not house with predatory fish such as puffers, triggerfish, hawkfish, or large wrasses, which will quickly prey upon it.

Aquarium Breeding: Any two mature individuals can spawn, and both will carry eggs under their tail pleopods. The eggs are incubated until they hatch at night. Successfully raising the larvae is extremely challenging due to their long, delicate planktonic stage and specific feeding requirements.

Risks and Diseases: Extremely sensitive to copper and heavy metals, which are lethal. Maintain proper iodine levels in the water to support the molting process. Slow drip acclimation of at least 2 hours is highly critical when introducing this shrimp to a new tank to prevent osmotic shock.